*
* dev.c -- low level operations on device (storage device)
*
- * Kern Sibbald
+ * Kern Sibbald, MM
*
* NOTE!!!! None of these routines are reentrant. You must
- * use lock_device() and unlock_device() at a higher level,
- * or use the xxx_device() equivalents. By moving the
- * thread synchronization to a higher level, we permit
- * the higher level routines to "seize" the device and
- * to carry out operations without worrying about who
- * set what lock (i.e. race conditions).
+ * use lock_device() and unlock_device() at a higher level,
+ * or use the xxx_device() equivalents. By moving the
+ * thread synchronization to a higher level, we permit
+ * the higher level routines to "seize" the device and
+ * to carry out operations without worrying about who
+ * set what lock (i.e. race conditions).
*
- * Note, this is the device dependent code, and my have
- * to be modified for each system, but is meant to
+ * Note, this is the device dependent code, and may have
+ * to be modified for each system, but is meant to
* be as "generic" as possible.
- *
+ *
* The purpose of this code is to develop a SIMPLE Storage
* daemon. More complicated coding (double buffering, writer
* thread, ...) is left for a later version.
* Version $Id$
*/
/*
- Copyright (C) 2000-2003 Kern Sibbald and John Walker
+ Bacula® - The Network Backup Solution
+
+ Copyright (C) 2000-2007 Free Software Foundation Europe e.V.
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of
- the License, or (at your option) any later version.
+ The main author of Bacula is Kern Sibbald, with contributions from
+ many others, a complete list can be found in the file AUTHORS.
+ This program is Free Software; you can redistribute it and/or
+ modify it under the terms of version two of the GNU General Public
+ License as published by the Free Software Foundation plus additions
+ that are listed in the file LICENSE.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
- You should have received a copy of the GNU General Public
- License along with this program; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA.
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.
- */
+ Bacula® is a registered trademark of John Walker.
+ The licensor of Bacula is the Free Software Foundation Europe
+ (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
+ Switzerland, email:ftf@fsfeurope.org.
+*/
/*
* Handling I/O errors and end of tape conditions are a bit tricky.
* On either an I/O error or end of tape,
* we will stop writing on the physical device (no I/O recovery is
* attempted at least in this daemon). The state flag will be sent
- * to include ST_EOT, which is ephimeral, and ST_WEOT, which is
+ * to include ST_EOT, which is ephemeral, and ST_WEOT, which is
* persistent. Lots of routines clear ST_EOT, but ST_WEOT is
* cleared only when the problem goes away. Now when ST_WEOT
- * is set all calls to write_dev() are handled as usual. However,
- * in write_block() instead of attempting to write the block to
- * the physical device, it is chained into a list of blocks written
- * after the EOT condition. In addition, all threads are blocked
- * from writing on the tape by calling lock(), and thread other
+ * is set all calls to write_block_to_device() call the fix_up
+ * routine. In addition, all threads are blocked
+ * from writing on the tape by calling lock_dev(), and thread other
* than the first thread to hit the EOT will block on a condition
* variable. The first thread to hit the EOT will continue to
* be able to read and write the tape (he sort of tunnels through
- * the locking mechanism -- see lock() for details).
+ * the locking mechanism -- see lock_dev() for details).
*
- * Now presumably somewhere higher in the chain of command
- * (device.c), someone will notice the EOT condition and
- * get a new tape up, get the tape label read, and mark
- * the label for rewriting. Then this higher level routine
+ * Now presumably somewhere higher in the chain of command
+ * (device.c), someone will notice the EOT condition and
+ * get a new tape up, get the tape label read, and mark
+ * the label for rewriting. Then this higher level routine
* will write the unwritten buffer to the new volume.
* Finally, he will release
* any blocked threads by doing a broadcast on the condition
- * variable. At that point, we should be totally back in
+ * variable. At that point, we should be totally back in
* business with no lost data.
*/
#include "bacula.h"
#include "stored.h"
-/* Forward referenced functions */
-int dev_is_tape(DEVICE *dev);
-void clrerror_dev(DEVICE *dev, int func);
-int fsr_dev(DEVICE *dev, int num);
+#ifndef O_NONBLOCK
+#define O_NONBLOCK 0
+#endif
-extern int debug_level;
+/* Forward referenced functions */
+void set_os_device_parameters(DCR *dcr);
+static bool dev_get_os_pos(DEVICE *dev, struct mtget *mt_stat);
+static char *mode_to_str(int mode);
-/*
+/*
* Allocate and initialize the DEVICE structure
* Note, if dev is non-NULL, it is already allocated,
* thus we neither allocate it nor free it. This allows
*
*/
DEVICE *
-init_dev(DEVICE *dev, DEVRES *device)
+init_dev(JCR *jcr, DEVRES *device)
{
struct stat statp;
- int tape, fifo;
int errstat;
-
- /* Check that device is available */
- if (stat(device->device_name, &statp) < 0) {
- if (dev) {
- dev->dev_errno = errno;
- }
- Emsg2(M_FATAL, 0, "Unable to stat device %s : %s\n", device->device_name,
- strerror(errno));
- return NULL;
- }
- tape = FALSE;
- fifo = FALSE;
- if (S_ISDIR(statp.st_mode)) {
- tape = FALSE;
- } else if (S_ISCHR(statp.st_mode)) {
- tape = TRUE;
- } else if (S_ISFIFO(statp.st_mode)) {
- fifo = TRUE;
- } else {
- if (dev) {
- dev->dev_errno = ENODEV;
+ DCR *dcr = NULL;
+ DEVICE *dev;
+
+
+ /* If no device type specified, try to guess */
+ if (!device->dev_type) {
+ /* Check that device is available */
+ if (stat(device->device_name, &statp) < 0) {
+ berrno be;
+ Jmsg2(jcr, M_ERROR, 0, _("Unable to stat device %s: ERR=%s\n"),
+ device->device_name, be.strerror());
+ return NULL;
+ }
+ if (S_ISDIR(statp.st_mode)) {
+ device->dev_type = B_FILE_DEV;
+ } else if (S_ISCHR(statp.st_mode)) {
+ device->dev_type = B_TAPE_DEV;
+ } else if (S_ISFIFO(statp.st_mode)) {
+ device->dev_type = B_FIFO_DEV;
+ } else if (!(device->cap_bits & CAP_REQMOUNT)) {
+ Jmsg2(jcr, M_ERROR, 0, _("%s is an unknown device type. Must be tape or directory\n"
+ " or have RequiresMount=yes for DVD. st_mode=%x\n"),
+ device->device_name, statp.st_mode);
+ return NULL;
+ } else {
+ device->dev_type = B_DVD_DEV;
}
- Emsg2(M_FATAL, 0, _("%s is an unknown device type. Must be tape or directory. st_mode=%x\n"),
- dev_name, statp.st_mode);
- return NULL;
- }
- if (!dev) {
- dev = (DEVICE *)get_memory(sizeof(DEVICE));
- memset(dev, 0, sizeof(DEVICE));
- dev->state = ST_MALLOC;
- } else {
- memset(dev, 0, sizeof(DEVICE));
}
+ dev = (DEVICE *)malloc(sizeof(DEVICE));
+ memset(dev, 0, sizeof(DEVICE));
+ dev->Slot = -1; /* unknown */
+
/* Copy user supplied device parameters from Resource */
dev->dev_name = get_memory(strlen(device->device_name)+1);
- strcpy(dev->dev_name, device->device_name);
+ pm_strcpy(dev->dev_name, device->device_name);
+ dev->prt_name = get_memory(strlen(device->device_name) + strlen(device->hdr.name) + 20);
+ /* We edit "Resource-name" (physical-name) */
+ Mmsg(dev->prt_name, "\"%s\" (%s)", device->hdr.name, device->device_name);
+ Dmsg1(400, "Allocate dev=%s\n", dev->print_name());
dev->capabilities = device->cap_bits;
dev->min_block_size = device->min_block_size;
dev->max_block_size = device->max_block_size;
dev->max_rewind_wait = device->max_rewind_wait;
dev->max_open_wait = device->max_open_wait;
dev->max_open_vols = device->max_open_vols;
+ dev->vol_poll_interval = device->vol_poll_interval;
+ dev->max_spool_size = device->max_spool_size;
+ dev->drive_index = device->drive_index;
+ dev->autoselect = device->autoselect;
+ dev->dev_type = device->dev_type;
+ if (dev->is_tape()) { /* No parts on tapes */
+ dev->max_part_size = 0;
+ } else {
+ dev->max_part_size = device->max_part_size;
+ }
+ /* Sanity check */
+ if (dev->vol_poll_interval && dev->vol_poll_interval < 60) {
+ dev->vol_poll_interval = 60;
+ }
+ /* Link the dev and device structures together */
dev->device = device;
+ device->dev = dev;
- if (tape) {
- dev->state |= ST_TAPE;
- } else if (fifo) {
- dev->state |= ST_FIFO;
+ if (dev->is_fifo()) {
dev->capabilities |= CAP_STREAM; /* set stream device */
- } else {
- dev->state |= ST_FILE;
+ }
+
+ /* If the device requires mount :
+ * - Check that the mount point is available
+ * - Check that (un)mount commands are defined
+ */
+ if ((dev->is_file() || dev->is_dvd()) && dev->requires_mount()) {
+ if (!device->mount_point || stat(device->mount_point, &statp) < 0) {
+ berrno be;
+ dev->dev_errno = errno;
+ Jmsg2(jcr, M_ERROR_TERM, 0, _("Unable to stat mount point %s: ERR=%s\n"),
+ device->mount_point, be.strerror());
+ }
+ }
+ if (dev->is_dvd()) {
+ if (!device->mount_command || !device->unmount_command) {
+ Jmsg0(jcr, M_ERROR_TERM, 0, _("Mount and unmount commands must defined for a device which requires mount.\n"));
+ }
+ if (!device->write_part_command) {
+ Jmsg0(jcr, M_ERROR_TERM, 0, _("Write part command must be defined for a device which requires mount.\n"));
+ }
}
if (dev->max_block_size > 1000000) {
- Emsg3(M_ERROR, 0, _("Block size %u on device %s is too large, using default %u\n"),
- dev->max_block_size, dev->dev_name, DEFAULT_BLOCK_SIZE);
+ Jmsg3(jcr, M_ERROR, 0, _("Block size %u on device %s is too large, using default %u\n"),
+ dev->max_block_size, dev->print_name(), DEFAULT_BLOCK_SIZE);
dev->max_block_size = 0;
}
if (dev->max_block_size % TAPE_BSIZE != 0) {
- Emsg2(M_WARNING, 0, _("Max block size %u not multiple of device %s block size.\n"),
- dev->max_block_size, dev->dev_name);
- }
-
+ Jmsg2(jcr, M_WARNING, 0, _("Max block size %u not multiple of device %s block size.\n"),
+ dev->max_block_size, dev->print_name());
+ }
+
dev->errmsg = get_pool_memory(PM_EMSG);
*dev->errmsg = 0;
if ((errstat = pthread_mutex_init(&dev->mutex, NULL)) != 0) {
+ berrno be;
dev->dev_errno = errstat;
- Mmsg1(&dev->errmsg, _("Unable to init mutex: ERR=%s\n"), strerror(errstat));
- Emsg0(M_FATAL, 0, dev->errmsg);
+ Mmsg1(dev->errmsg, _("Unable to init mutex: ERR=%s\n"), be.strerror(errstat));
+ Jmsg0(jcr, M_ERROR_TERM, 0, dev->errmsg);
}
if ((errstat = pthread_cond_init(&dev->wait, NULL)) != 0) {
+ berrno be;
dev->dev_errno = errstat;
- Mmsg1(&dev->errmsg, _("Unable to init cond variable: ERR=%s\n"), strerror(errstat));
- Emsg0(M_FATAL, 0, dev->errmsg);
+ Mmsg1(dev->errmsg, _("Unable to init cond variable: ERR=%s\n"), be.strerror(errstat));
+ Jmsg0(jcr, M_ERROR_TERM, 0, dev->errmsg);
}
if ((errstat = pthread_cond_init(&dev->wait_next_vol, NULL)) != 0) {
+ berrno be;
dev->dev_errno = errstat;
- Mmsg1(&dev->errmsg, _("Unable to init cond variable: ERR=%s\n"), strerror(errstat));
- Emsg0(M_FATAL, 0, dev->errmsg);
+ Mmsg1(dev->errmsg, _("Unable to init cond variable: ERR=%s\n"), be.strerror(errstat));
+ Jmsg0(jcr, M_ERROR_TERM, 0, dev->errmsg);
+ }
+ if ((errstat = pthread_mutex_init(&dev->spool_mutex, NULL)) != 0) {
+ berrno be;
+ dev->dev_errno = errstat;
+ Mmsg1(dev->errmsg, _("Unable to init mutex: ERR=%s\n"), be.strerror(errstat));
+ Jmsg0(jcr, M_ERROR_TERM, 0, dev->errmsg);
+ }
+ if ((errstat = rwl_init(&dev->lock)) != 0) {
+ berrno be;
+ dev->dev_errno = errstat;
+ Mmsg1(dev->errmsg, _("Unable to init mutex: ERR=%s\n"), be.strerror(errstat));
+ Jmsg0(jcr, M_ERROR_TERM, 0, dev->errmsg);
}
- dev->fd = -1;
- Dmsg2(29, "init_dev: tape=%d dev_name=%s\n", dev_is_tape(dev), dev->dev_name);
+
+ dev->clear_opened();
+ dev->attached_dcrs = New(dlist(dcr, &dcr->dev_link));
+ Dmsg2(29, "init_dev: tape=%d dev_name=%s\n", dev->is_tape(), dev->dev_name);
+
return dev;
}
-/* Open the device with the operating system and
+/*
+ * Open the device with the operating system and
* initialize buffer pointers.
*
+ * Returns: -1 on error
+ * fd on success
+ *
* Note, for a tape, the VolName is the name we give to the
* volume (not really used here), but for a file, the
* VolName represents the name of the file to be created/opened.
* (archive_name) with the VolName concatenated.
*/
int
-open_dev(DEVICE *dev, char *VolName, int mode)
+DEVICE::open(DCR *dcr, int omode)
{
- POOLMEM *archive_name;
+ int preserve = 0;
+ if (is_open()) {
+ if (openmode == omode) {
+ return fd;
+ } else {
+ if (is_tape()) {
+ tape_close(fd);
+ } else {
+ ::close(fd);
+ }
+ clear_opened();
+ Dmsg0(100, "Close fd for mode change.\n");
+ preserve = state & (ST_LABEL|ST_APPEND|ST_READ);
+ }
+ }
+ if (dcr) {
+ bstrncpy(VolCatInfo.VolCatName, dcr->VolumeName, sizeof(VolCatInfo.VolCatName));
+ }
- if (dev->state & ST_OPENED) {
- /*
- * *****FIXME***** how to handle two threads wanting
- * different volumes mounted???? E.g. one is waiting
- * for the next volume to be mounted, and a new job
- * starts and snatches up the device.
- */
- if (VolName && strcmp(dev->VolCatInfo.VolCatName, VolName) != 0) {
- return -1;
- }
- dev->use_count++;
- Mmsg2(&dev->errmsg, _("WARNING!!!! device %s opened %d times!!!\n"),
- dev->dev_name, dev->use_count);
- Emsg1(M_WARNING, 0, "%s", dev->errmsg);
- return dev->fd;
- }
- if (VolName) {
- bstrncpy(dev->VolCatInfo.VolCatName, VolName, sizeof(dev->VolCatInfo.VolCatName));
- }
-
- Dmsg3(29, "open_dev: tape=%d dev_name=%s vol=%s\n", dev_is_tape(dev),
- dev->dev_name, dev->VolCatInfo.VolCatName);
- dev->state &= ~(ST_LABEL|ST_APPEND|ST_READ|ST_EOT|ST_WEOT|ST_EOF);
- if (dev->state & (ST_TAPE|ST_FIFO)) {
- int timeout;
- Dmsg0(29, "open_dev: device is tape\n");
- if (mode == OPEN_READ_WRITE) {
- dev->mode = O_RDWR | O_BINARY;
- } else if (mode == OPEN_READ_ONLY) {
- dev->mode = O_RDONLY | O_BINARY;
- } else if (mode == OPEN_WRITE_ONLY) {
- dev->mode = O_WRONLY | O_BINARY;
+ Dmsg4(29, "open dev: type=%d dev_name=%s vol=%s mode=%s\n", dev_type,
+ print_name(), VolCatInfo.VolCatName, mode_to_str(omode));
+ state &= ~(ST_LABEL|ST_APPEND|ST_READ|ST_EOT|ST_WEOT|ST_EOF);
+ Slot = -1; /* unknown slot */
+ label_type = B_BACULA_LABEL;
+ if (is_tape() || is_fifo()) {
+ open_tape_device(dcr, omode);
+ } else if (is_dvd()) {
+ Dmsg1(100, "call open_dvd_device mode=%s\n", mode_to_str(omode));
+ open_dvd_device(dcr, omode);
+ } else {
+ Dmsg1(100, "call open_file_device mode=%s\n", mode_to_str(omode));
+ open_file_device(dcr, omode);
+ }
+ state |= preserve; /* reset any important state info */
+ Dmsg2(100, "preserve=0x%x fd=%d\n", preserve, fd);
+ return fd;
+}
+
+void DEVICE::set_mode(int new_mode)
+{
+ switch (new_mode) {
+ case CREATE_READ_WRITE:
+ mode = O_CREAT | O_RDWR | O_BINARY;
+ break;
+ case OPEN_READ_WRITE:
+ mode = O_RDWR | O_BINARY;
+ break;
+ case OPEN_READ_ONLY:
+ mode = O_RDONLY | O_BINARY;
+ break;
+ case OPEN_WRITE_ONLY:
+ mode = O_WRONLY | O_BINARY;
+ break;
+ default:
+ Emsg0(M_ABORT, 0, _("Illegal mode given to open dev.\n"));
+ }
+}
+
+/*
+ */
+void DEVICE::open_tape_device(DCR *dcr, int omode)
+{
+ file_size = 0;
+ int timeout = max_open_wait;
+#if !defined(HAVE_WIN32)
+ struct mtop mt_com;
+ utime_t start_time = time(NULL);
+#endif
+
+
+ Dmsg0(29, "Open dev: device is tape\n");
+
+ get_autochanger_loaded_slot(dcr);
+
+ openmode = omode;
+ set_mode(omode);
+
+ if (timeout < 1) {
+ timeout = 1;
+ }
+ errno = 0;
+ if (is_fifo() && timeout) {
+ /* Set open timer */
+ tid = start_thread_timer(pthread_self(), timeout);
+ }
+ Dmsg2(100, "Try open %s mode=%s\n", print_name(), mode_to_str(omode));
+#if defined(HAVE_WIN32)
+
+ /* Windows Code */
+ if ((fd = tape_open(dev_name, mode)) < 0) {
+ dev_errno = errno;
+ }
+
+#else
+
+ /* UNIX Code */
+ /* If busy retry each second for max_open_wait seconds */
+ for ( ;; ) {
+ /* Try non-blocking open */
+ fd = ::open(dev_name, mode+O_NONBLOCK);
+ if (fd < 0) {
+ berrno be;
+ dev_errno = errno;
+ Dmsg5(050, "Open error on %s omode=%d mode=%x errno=%d: ERR=%s\n",
+ print_name(), omode, mode, errno, be.strerror());
} else {
- Emsg0(M_ABORT, 0, _("Illegal mode given to open_dev.\n"));
- }
- timeout = dev->max_open_wait;
- errno = 0;
- if (dev->state & ST_FIFO && timeout) {
- /* Set open timer */
- dev->tid = start_thread_timer(pthread_self(), timeout);
- }
- /* If busy retry each second for max_open_wait seconds */
- while ((dev->fd = open(dev->dev_name, dev->mode, MODE_RW)) < 0) {
- if (errno == EAGAIN) {
- continue;
- }
- if (errno == EBUSY && timeout-- > 0) {
- Dmsg2(100, "Device %s busy. ERR=%s\n", dev->dev_name, strerror(errno));
- bmicrosleep(1, 0);
- continue;
- }
- dev->dev_errno = errno;
- Mmsg2(&dev->errmsg, _("stored: unable to open device %s: ERR=%s\n"),
- dev->dev_name, strerror(dev->dev_errno));
- /* Stop any open timer we set */
- if (dev->tid) {
- stop_thread_timer(dev->tid);
- dev->tid = 0;
- }
- Emsg0(M_FATAL, 0, dev->errmsg);
- break;
- }
- if (dev->fd >= 0) {
- dev->dev_errno = 0;
- dev->state |= ST_OPENED;
- dev->use_count++;
- update_pos_dev(dev); /* update position */
- }
- /* Stop any open() timer we started */
- if (dev->tid) {
- stop_thread_timer(dev->tid);
- dev->tid = 0;
- }
- Dmsg1(29, "open_dev: tape %d opened\n", dev->fd);
+ /* Tape open, now rewind it */
+ Dmsg0(050, "Rewind after open\n");
+ mt_com.mt_op = MTREW;
+ mt_com.mt_count = 1;
+ if (ioctl(fd, MTIOCTOP, (char *)&mt_com) < 0) {
+ berrno be;
+ dev_errno = errno; /* set error status from rewind */
+ ::close(fd);
+ clear_opened();
+ Dmsg2(100, "Rewind error on %s close: ERR=%s\n", print_name(),
+ be.strerror(dev_errno));
+ /* If we get busy, device is probably rewinding, try again */
+ if (dev_errno != EBUSY) {
+ break; /* error -- no medium */
+ }
+ } else {
+ /* Got fd and rewind worked, so we must have medium in drive */
+ ::close(fd);
+ fd = ::open(dev_name, mode); /* open normally */
+ if (fd < 0) {
+ berrno be;
+ dev_errno = errno;
+ Dmsg5(050, "Open error on %s omode=%d mode=%x errno=%d: ERR=%s\n",
+ print_name(), omode, mode, errno, be.strerror());
+ break;
+ }
+ dev_errno = 0;
+ lock_door();
+ set_os_device_parameters(dcr); /* do system dependent stuff */
+ break; /* Successfully opened and rewound */
+ }
+ }
+ bmicrosleep(5, 0);
+ /* Exceed wait time ? */
+ if (time(NULL) - start_time >= max_open_wait) {
+ break; /* yes, get out */
+ }
+ }
+#endif
+
+ if (!is_open()) {
+ berrno be;
+ Mmsg2(errmsg, _("Unable to open device %s: ERR=%s\n"),
+ print_name(), be.strerror(dev_errno));
+ Dmsg1(100, "%s", errmsg);
+ }
+
+ /* Stop any open() timer we started */
+ if (tid) {
+ stop_thread_timer(tid);
+ tid = 0;
+ }
+ Dmsg1(29, "open dev: tape %d opened\n", fd);
+}
+
+
+/*
+ * Open a file device
+ */
+void DEVICE::open_file_device(DCR *dcr, int omode)
+{
+ POOL_MEM archive_name(PM_FNAME);
+
+ get_autochanger_loaded_slot(dcr);
+
+ /*
+ * Handle opening of File Archive (not a tape)
+ */
+
+ pm_strcpy(archive_name, dev_name);
+ /*
+ * If this is a virtual autochanger (i.e. changer_res != NULL)
+ * we simply use the device name, assuming it has been
+ * appropriately setup by the "autochanger".
+ */
+ if (!device->changer_res) {
+ if (VolCatInfo.VolCatName[0] == 0) {
+ Mmsg(errmsg, _("Could not open file device %s. No Volume name given.\n"),
+ print_name());
+ clear_opened();
+ return;
+ }
+
+ if (!IsPathSeparator(archive_name.c_str()[strlen(archive_name.c_str())-1])) {
+ pm_strcat(archive_name, "/");
+ }
+ pm_strcat(archive_name, VolCatInfo.VolCatName);
+ }
+
+ mount(1); /* do mount if required */
+
+ openmode = omode;
+ set_mode(omode);
+ /* If creating file, give 0640 permissions */
+ Dmsg3(29, "open disk: mode=%s open(%s, 0x%x, 0640)\n", mode_to_str(omode),
+ archive_name.c_str(), mode);
+ /* Use system open() */
+ if ((fd = ::open(archive_name.c_str(), mode, 0640)) < 0) {
+ berrno be;
+ dev_errno = errno;
+ Mmsg2(errmsg, _("Could not open: %s, ERR=%s\n"), archive_name.c_str(),
+ be.strerror());
+ Dmsg1(29, "open failed: %s", errmsg);
+ Emsg0(M_FATAL, 0, errmsg);
} else {
- /*
- * Handle opening of File Archive (not a tape)
- */
- if (VolName == NULL || *VolName == 0) {
- Mmsg(&dev->errmsg, _("Could not open file device %s. No Volume name given.\n"),
- dev->dev_name);
- return -1;
- }
- archive_name = get_pool_memory(PM_FNAME);
- pm_strcpy(&archive_name, dev->dev_name);
- if (archive_name[strlen(archive_name)] != '/') {
- pm_strcat(&archive_name, "/");
- }
- pm_strcat(&archive_name, VolName);
- Dmsg1(29, "open_dev: device is disk %s\n", archive_name);
- if (mode == OPEN_READ_WRITE) {
- dev->mode = O_CREAT | O_RDWR | O_BINARY;
- } else if (mode == OPEN_READ_ONLY) {
- dev->mode = O_RDONLY | O_BINARY;
- } else if (mode == OPEN_WRITE_ONLY) {
- dev->mode = O_WRONLY | O_BINARY;
+ dev_errno = 0;
+ file = 0;
+ file_addr = 0;
+ }
+ Dmsg4(29, "open dev: disk fd=%d opened, part=%d/%d, part_size=%u\n",
+ fd, part, num_dvd_parts, part_size);
+}
+
+/*
+ * Open a DVD device. N.B. at this point, dcr->VolCatInfo.VolCatName
+ * (NB:??? I think it's VolCatInfo.VolCatName that is right)
+ * has the desired Volume name, but there is NO assurance that
+ * any other field of VolCatInfo is correct.
+ */
+void DEVICE::open_dvd_device(DCR *dcr, int omode)
+{
+ POOL_MEM archive_name(PM_FNAME);
+ struct stat filestat;
+
+ /*
+ * Handle opening of DVD Volume
+ */
+ Dmsg2(29, "Enter: open_dvd_dev: DVD vol=%s mode=%s\n",
+ &dcr->VolCatInfo, mode_to_str(omode));
+
+ /*
+ * For a DVD we must always pull the state info from dcr->VolCatInfo
+ * This is a bit ugly, but is necessary because we need to open/close/re-open
+ * the dvd file in order to properly mount/unmount and access the
+ * DVD. So we store the state of the DVD as far as is known in the
+ * catalog in dcr->VolCatInfo, and thus we refresh the dev->VolCatInfo
+ * copy here, when opening.
+ */
+ VolCatInfo = dcr->VolCatInfo; /* structure assignment */
+ Dmsg1(100, "Volume=%s\n", VolCatInfo.VolCatName);
+
+ if (VolCatInfo.VolCatName[0] == 0) {
+ Dmsg1(10, "Could not open DVD device %s. No Volume name given.\n",
+ print_name());
+ Mmsg(errmsg, _("Could not open DVD device %s. No Volume name given.\n"),
+ print_name());
+ clear_opened();
+ return;
+ }
+
+ if (part == 0) {
+ Dmsg0(100, "Set part=1\n");
+ part = 1; /* count from 1 */
+ file_size = 0;
+ }
+ part_size = 0;
+ if (num_dvd_parts != VolCatInfo.VolCatParts) {
+ num_dvd_parts = VolCatInfo.VolCatParts;
+ }
+
+ /*
+ * If we are not trying to access the last part, set mode to
+ * OPEN_READ_ONLY as writing would be an error.
+ */
+ Dmsg2(29, "open DVD part=%d num_dvd_parts=%d\n", part, num_dvd_parts);
+ /* Now find the name of the part that we want to access */
+ if (part <= num_dvd_parts) {
+ omode = OPEN_READ_ONLY;
+ make_mounted_dvd_filename(this, archive_name);
+ set_part_spooled(false);
+ } else {
+ omode = OPEN_READ_WRITE;
+ make_spooled_dvd_filename(this, archive_name);
+ set_part_spooled(true);
+ }
+ set_mode(omode);
+
+ // Clear any previous blank_dvd status - we will recalculate it here
+ blank_dvd = false;
+
+ Dmsg3(99, "open_dvd_device: part=%d num_dvd_parts=%d, VolCatInfo.VolCatParts=%d\n",
+ part, num_dvd_parts, dcr->VolCatInfo.VolCatParts);
+
+ if (mount(1)) {
+ Dmsg0(99, "DVD device mounted.\n");
+ if (num_dvd_parts == 0 && !truncating) {
+ /*
+ * If we can mount the device, and we are not truncating the DVD,
+ * we usually want to abort. There is one exception, if there is
+ * only one 0-sized file on the DVD, with the right volume name,
+ * we continue (it's the method used by truncate_dvd to truncate a volume).
+ */
+ if (!check_can_write_on_non_blank_dvd(dcr)) {
+ Mmsg(errmsg, _("The DVD in device %s contains data, please blank it before writing.\n"), print_name());
+ Emsg0(M_FATAL, 0, errmsg);
+ unmount(1); /* Unmount the device, so the operator can change it. */
+ clear_opened();
+ return;
+ }
+ blank_dvd = true;
} else {
- Emsg0(M_ABORT, 0, _("Illegal mode given to open_dev.\n"));
+ /*
+ * Ensure that we have the correct DVD loaded by looking for part1.
+ * We only succeed the open if it exists. Failure to do this could
+ * leave us trying to add a part to a different DVD!
+ */
+ uint32_t oldpart = part;
+ struct stat statp;
+ POOL_MEM part1_name(PM_FNAME);
+ part = 1;
+ make_mounted_dvd_filename(this, part1_name);
+ part = oldpart;
+ if (stat(part1_name.c_str(), &statp) < 0) {
+ berrno be;
+ Mmsg(errmsg, _("Unable to stat DVD part 1 file %s: ERR=%s\n"),
+ part1_name.c_str(), be.strerror());
+ Emsg0(M_FATAL, 0, errmsg);
+ clear_opened();
+ return;
+ }
+ if (!S_ISREG(statp.st_mode)) {
+ /* It is not a regular file */
+ Mmsg(errmsg, _("DVD part 1 is not a regular file %s.\n"),
+ part1_name.c_str());
+ Emsg0(M_FATAL, 0, errmsg);
+ clear_opened();
+ return;
+ }
+ }
+ } else {
+ Dmsg0(99, "DVD device mount failed.\n");
+ /* We cannot mount the device */
+ if (num_dvd_parts == 0) {
+ /* Run free space, check there is a media. */
+ if (!update_freespace()) {
+ Emsg0(M_FATAL, 0, errmsg);
+ clear_opened();
+ return;
+ }
+ if (have_media()) {
+ Dmsg1(29, "Could not mount device %s, this is not a problem (num_dvd_parts == 0), and have media.\n", print_name());
+ } else {
+ Mmsg(errmsg, _("There is no valid DVD in device %s.\n"), print_name());
+ Emsg0(M_FATAL, 0, errmsg);
+ clear_opened();
+ return;
+ }
+ } else {
+ Mmsg(errmsg, _("Could not mount DVD device %s.\n"), print_name());
+ Emsg0(M_FATAL, 0, errmsg);
+ clear_opened();
+ return;
}
- /* If creating file, give 0640 permissions */
- if ((dev->fd = open(archive_name, dev->mode, 0640)) < 0) {
- dev->dev_errno = errno;
- Mmsg2(&dev->errmsg, _("Could not open: %s, ERR=%s\n"), archive_name, strerror(dev->dev_errno));
- Emsg0(M_FATAL, 0, dev->errmsg);
+ }
+
+ Dmsg5(29, "open dev: DVD dev=%s mode=%s part=%d npart=%d volcatnparts=%d\n",
+ archive_name.c_str(), mode_to_str(omode),
+ part, num_dvd_parts, dcr->VolCatInfo.VolCatParts);
+ openmode = omode;
+ Dmsg2(100, "openmode=%d %s\n", openmode, mode_to_str(openmode));
+
+
+ /* If creating file, give 0640 permissions */
+ Dmsg3(29, "mode=%s open(%s, 0x%x, 0640)\n", mode_to_str(omode),
+ archive_name.c_str(), mode);
+ /* Use system open() */
+ if ((fd = ::open(archive_name.c_str(), mode, 0640)) < 0) {
+ berrno be;
+ Mmsg2(errmsg, _("Could not open: %s, ERR=%s\n"), archive_name.c_str(),
+ be.strerror());
+ // Should this be set if we try the create/open below
+ dev_errno = EIO; /* Interpreted as no device present by acquire.c:acquire_device_for_read(). */
+ Dmsg1(29, "open failed: %s", errmsg);
+
+ /* Previous open failed. See if we can recover */
+ if ((omode == OPEN_READ_ONLY || omode == OPEN_READ_WRITE) &&
+ (part > num_dvd_parts)) {
+ /* If the last part (on spool), doesn't exist when accessing,
+ * create it. In read/write mode a write will be allowed (higher
+ * level software thinks that we are extending a pre-existing
+ * media. Reads for READ_ONLY will report immediately an EOF
+ * Sometimes it is better to finish with an EOF than with an error. */
+ Dmsg1(29, "Creating last part on spool: %s\n", archive_name.c_str());
+ omode = CREATE_READ_WRITE;
+ set_mode(CREATE_READ_WRITE);
+ fd = ::open(archive_name.c_str(), mode, 0640);
+ set_mode(omode);
+ }
+ }
+ Dmsg1(100, "after open fd=%d\n", fd);
+ if (is_open()) {
+ if (omode == OPEN_READ_WRITE || omode == CREATE_READ_WRITE) {
+ set_append();
+ }
+ /* Get size of file */
+ if (fstat(fd, &filestat) < 0) {
+ berrno be;
+ dev_errno = errno;
+ Mmsg2(errmsg, _("Could not fstat: %s, ERR=%s\n"), archive_name.c_str(),
+ be.strerror());
+ Dmsg1(29, "open failed: %s", errmsg);
+ /* Use system close() */
+ ::close(fd);
+ clear_opened();
} else {
- dev->dev_errno = 0;
- dev->state |= ST_OPENED;
- dev->use_count++;
- update_pos_dev(dev); /* update position */
+ part_size = filestat.st_size;
+ dev_errno = 0;
+ update_pos(dcr); /* update position */
}
- Dmsg1(29, "open_dev: disk fd=%d opened\n", dev->fd);
- free_pool_memory(archive_name);
}
- return dev->fd;
}
+
/*
* Rewind the device.
- * Returns: 1 on success
- * 0 on failure
+ * Returns: true on success
+ * false on failure
*/
-int rewind_dev(DEVICE *dev)
+bool DEVICE::rewind(DCR *dcr)
{
struct mtop mt_com;
unsigned int i;
-
- Dmsg0(29, "rewind_dev\n");
- if (dev->fd < 0) {
- dev->dev_errno = EBADF;
- Mmsg1(&dev->errmsg, _("Bad call to rewind_dev. Device %s not open\n"),
- dev->dev_name);
- Emsg0(M_FATAL, 0, dev->errmsg);
- return 0;
+ bool first = true;
+
+ Dmsg3(400, "rewind res=%d fd=%d %s\n", reserved_device, fd, print_name());
+ state &= ~(ST_EOT|ST_EOF|ST_WEOT); /* remove EOF/EOT flags */
+ block_num = file = 0;
+ file_size = 0;
+ file_addr = 0;
+ if (fd < 0) {
+ if (!is_dvd()) { /* In case of major error, the fd is not open on DVD, so we don't want to abort. */
+ dev_errno = EBADF;
+ Mmsg1(errmsg, _("Bad call to rewind. Device %s not open\n"),
+ print_name());
+ Emsg0(M_ABORT, 0, errmsg);
+ }
+ return false;
}
- dev->state &= ~(ST_APPEND|ST_READ|ST_EOT | ST_EOF | ST_WEOT); /* remove EOF/EOT flags */
- dev->block_num = dev->file = 0;
- dev->file_addr = 0;
- if (dev->state & ST_TAPE) {
+ if (is_tape()) {
mt_com.mt_op = MTREW;
mt_com.mt_count = 1;
/* If we get an I/O error on rewind, it is probably because
* the drive is actually busy. We loop for (about 5 minutes)
* retrying every 5 seconds.
*/
- for (i=dev->max_rewind_wait; ; i -= 5) {
- if (ioctl(dev->fd, MTIOCTOP, (char *)&mt_com) < 0) {
- if (i == dev->max_rewind_wait) {
- Dmsg1(200, "Rewind error, %s. retrying ...\n", strerror(errno));
- }
- clrerror_dev(dev, MTREW);
- if (dev->dev_errno == EIO && i > 0) {
+ for (i=max_rewind_wait; ; i -= 5) {
+ if (tape_ioctl(fd, MTIOCTOP, (char *)&mt_com) < 0) {
+ berrno be;
+ clrerror(MTREW);
+ if (i == max_rewind_wait) {
+ Dmsg1(200, "Rewind error, %s. retrying ...\n", be.strerror());
+ }
+ /*
+ * This is a gross hack, because if the user has the
+ * device mounted (i.e. open), then uses mtx to load
+ * a tape, the current open file descriptor is invalid.
+ * So, we close the drive and re-open it.
+ */
+ if (first && dcr) {
+ int open_mode = openmode;
+ tape_close(fd);
+ clear_opened();
+ open(dcr, open_mode);
+ if (fd < 0) {
+ return false;
+ }
+ first = false;
+ continue;
+ }
+#ifdef HAVE_SUN_OS
+ if (dev_errno == EIO) {
+ Mmsg1(errmsg, _("No tape loaded or drive offline on %s.\n"), print_name());
+ return false;
+ }
+#else
+ if (dev_errno == EIO && i > 0) {
Dmsg0(200, "Sleeping 5 seconds.\n");
- bmicrosleep(5, 0);
- continue;
- }
- Mmsg2(&dev->errmsg, _("Rewind error on %s. ERR=%s.\n"),
- dev->dev_name, strerror(dev->dev_errno));
- return 0;
- }
- break;
- }
- } else if (dev->state & ST_FILE) {
- if (lseek(dev->fd, (off_t)0, SEEK_SET) < 0) {
- dev->dev_errno = errno;
- Mmsg2(&dev->errmsg, _("lseek error on %s. ERR=%s.\n"),
- dev->dev_name, strerror(dev->dev_errno));
- return 0;
- }
- }
- return 1;
+ bmicrosleep(5, 0);
+ continue;
+ }
+#endif
+ Mmsg2(errmsg, _("Rewind error on %s. ERR=%s.\n"),
+ print_name(), be.strerror());
+ return false;
+ }
+ break;
+ }
+ } else if (is_file() || is_dvd()) {
+ if (lseek(dcr, (boffset_t)0, SEEK_SET) < 0) {
+ berrno be;
+ dev_errno = errno;
+ Mmsg2(errmsg, _("lseek error on %s. ERR=%s.\n"),
+ print_name(), be.strerror());
+ return false;
+ }
+ }
+ return true;
+}
+
+void DEVICE::block(int why)
+{
+ lock_device(this);
+ block_device(this, why);
+ V(mutex);
+}
+
+void DEVICE::unblock()
+{
+ P(mutex);
+ unblock_device(this);
+ V(mutex);
+}
+
+const char *DEVICE::print_blocked() const
+{
+ switch (dev_blocked) {
+ case BST_NOT_BLOCKED:
+ return "BST_NOT_BLOCKED";
+ case BST_UNMOUNTED:
+ return "BST_UNMOUNTED";
+ case BST_WAITING_FOR_SYSOP:
+ return "BST_WAITING_FOR_SYSOP";
+ case BST_DOING_ACQUIRE:
+ return "BST_DOING_ACQUIRE";
+ case BST_WRITING_LABEL:
+ return "BST_WRITING_LABEL";
+ case BST_UNMOUNTED_WAITING_FOR_SYSOP:
+ return "BST_UNMOUNTED_WAITING_FOR_SYSOP";
+ case BST_MOUNT:
+ return "BST_MOUNT";
+ default:
+ return _("unknown blocked code");
+ }
+}
+
+/*
+ * Called to indicate that we have just read an
+ * EOF from the device.
+ */
+void DEVICE::set_ateof()
+{
+ set_eof();
+ if (is_tape()) {
+ file++;
+ }
+ file_addr = 0;
+ file_size = 0;
+ block_num = 0;
+}
+
+/*
+ * Called to indicate we are now at the end of the tape, and
+ * writing is not possible.
+ */
+void DEVICE::set_ateot()
+{
+ /* Make tape effectively read-only */
+ state |= (ST_EOF|ST_EOT|ST_WEOT);
+ clear_append();
}
-/*
+/*
* Position device to end of medium (end of data)
- * Returns: 1 on succes
- * 0 on error
+ * Returns: true on succes
+ * false on error
*/
-int
-eod_dev(DEVICE *dev)
+bool DEVICE::eod(DCR *dcr)
{
struct mtop mt_com;
struct mtget mt_stat;
- int stat = 0;
- off_t pos;
+ bool ok = true;
+ boffset_t pos;
- Dmsg0(29, "eod_dev\n");
- if (dev->state & ST_EOT) {
- return 1;
+ if (fd < 0) {
+ dev_errno = EBADF;
+ Mmsg1(errmsg, _("Bad call to eod. Device %s not open\n"), print_name());
+ return false;
}
- dev->state &= ~(ST_EOF); /* remove EOF flags */
- dev->block_num = dev->file = 0;
- dev->file_addr = 0;
- if (dev->state & (ST_FIFO | ST_PROG)) {
- return 1;
+
+#if defined (__digital__) && defined (__unix__)
+ return fsf(VolCatInfo.VolCatFiles);
+#endif
+
+ Dmsg0(29, "eod\n");
+ if (at_eot()) {
+ return true;
}
- if (!(dev->state & ST_TAPE)) {
- pos = lseek(dev->fd, (off_t)0, SEEK_END);
-// Dmsg1(000, "====== Seek to %lld\n", pos);
+ clear_eof(); /* remove EOF flag */
+ block_num = file = 0;
+ file_size = 0;
+ file_addr = 0;
+ if (is_fifo() || is_prog()) {
+ return true;
+ }
+ if (!is_tape()) {
+ pos = lseek(dcr, (boffset_t)0, SEEK_END);
+// Dmsg1(100, "====== Seek to %lld\n", pos);
if (pos >= 0) {
- update_pos_dev(dev);
- dev->state |= ST_EOT;
- return 1;
+ update_pos(dcr);
+ set_eot();
+ return true;
}
- return 0;
+ dev_errno = errno;
+ berrno be;
+ Mmsg2(errmsg, _("lseek error on %s. ERR=%s.\n"),
+ print_name(), be.strerror());
+ return false;
}
#ifdef MTEOM
- if (dev_cap(dev, CAP_EOM)) {
- mt_com.mt_op = MTEOM;
- mt_com.mt_count = 1;
- if ((stat=ioctl(dev->fd, MTIOCTOP, (char *)&mt_com)) < 0) {
- Dmsg1(50, "ioctl error: %s\n", strerror(dev->dev_errno));
- clrerror_dev(dev, mt_com.mt_op);
- update_pos_dev(dev);
- Mmsg2(&dev->errmsg, _("ioctl MTEOM error on %s. ERR=%s.\n"),
- dev->dev_name, strerror(dev->dev_errno));
- return 0;
- }
- if (ioctl(dev->fd, MTIOCGET, (char *)&mt_stat) < 0) {
- dev->dev_errno = errno;
- Mmsg2(&dev->errmsg, _("ioctl MTIOCGET error on %s. ERR=%s.\n"),
- dev->dev_name, strerror(dev->dev_errno));
- return 0;
- }
- Dmsg2(200, "EOD file=%d block=%d\n", mt_stat.mt_fileno, mt_stat.mt_blkno);
- dev->file = mt_stat.mt_fileno;
+ if (has_cap(CAP_FASTFSF) && !has_cap(CAP_EOM)) {
+ Dmsg0(100,"Using FAST FSF for EOM\n");
+ /* If unknown position, rewind */
+ if (!dev_get_os_pos(this, &mt_stat)) {
+ if (!rewind(NULL)) {
+ return false;
+ }
+ }
+ mt_com.mt_op = MTFSF;
+ /*
+ * ***FIXME*** fix code to handle case that INT16_MAX is
+ * not large enough.
+ */
+ mt_com.mt_count = INT16_MAX; /* use big positive number */
+ if (mt_com.mt_count < 0) {
+ mt_com.mt_count = INT16_MAX; /* brain damaged system */
+ }
+ }
- /*
- * Rewind then use FSF until EOT reached
- */
+ if (has_cap(CAP_MTIOCGET) && (has_cap(CAP_FASTFSF) || has_cap(CAP_EOM))) {
+ if (has_cap(CAP_EOM)) {
+ Dmsg0(100,"Using EOM for EOM\n");
+ mt_com.mt_op = MTEOM;
+ mt_com.mt_count = 1;
+ }
+
+ if (tape_ioctl(fd, MTIOCTOP, (char *)&mt_com) < 0) {
+ berrno be;
+ clrerror(mt_com.mt_op);
+ Dmsg1(50, "ioctl error: %s\n", be.strerror());
+ update_pos(dcr);
+ Mmsg2(errmsg, _("ioctl MTEOM error on %s. ERR=%s.\n"),
+ print_name(), be.strerror());
+ return false;
+ }
+
+ if (!dev_get_os_pos(this, &mt_stat)) {
+ berrno be;
+ clrerror(-1);
+ Mmsg2(errmsg, _("ioctl MTIOCGET error on %s. ERR=%s.\n"),
+ print_name(), be.strerror());
+ return false;
+ }
+ Dmsg2(100, "EOD file=%d block=%d\n", mt_stat.mt_fileno, mt_stat.mt_blkno);
+ set_ateof();
+ file = mt_stat.mt_fileno;
} else {
#else
{
#endif
- if (!rewind_dev(dev)) {
- return 0;
+ /*
+ * Rewind then use FSF until EOT reached
+ */
+ if (!rewind(NULL)) {
+ return false;
}
- while (!(dev->state & ST_EOT)) {
- Dmsg0(200, "Do fsf 1\n");
- if (!fsf_dev(dev, 1)) {
- Dmsg0(200, "fsf_dev error.\n");
- return 0;
- }
+ /*
+ * Move file by file to the end of the tape
+ */
+ int file_num;
+ for (file_num=file; !at_eot(); file_num++) {
+ Dmsg0(200, "eod: doing fsf 1\n");
+ if (!fsf(1)) {
+ Dmsg0(200, "fsf error.\n");
+ return false;
+ }
+ /*
+ * Avoid infinite loop by ensuring we advance.
+ */
+ if (!at_eot() && file_num == (int)file) {
+ struct mtget mt_stat;
+ Dmsg1(100, "fsf did not advance from file %d\n", file_num);
+ set_ateof();
+ if (dev_get_os_pos(this, &mt_stat)) {
+ Dmsg2(100, "Adjust file from %d to %d\n", file_num, mt_stat.mt_fileno);
+ file = mt_stat.mt_fileno;
+ }
+ break;
+ }
}
}
/*
* MTEOM, so we must backup so that appending overwrites
* the second EOF.
*/
- if (dev_cap(dev, CAP_BSFATEOM)) {
- stat = (bsf_dev(dev, 1) == 0);
- dev->file++; /* keep same file */
+ if (has_cap(CAP_BSFATEOM)) {
+ struct mtget mt_stat;
+ /* Backup over EOF */
+ ok = bsf(1);
+ /* If BSF worked and fileno is known (not -1), set file */
+ if (dev_get_os_pos(this, &mt_stat)) {
+ Dmsg2(100, "BSFATEOF adjust file from %d to %d\n", file , mt_stat.mt_fileno);
+ file = mt_stat.mt_fileno;
+ } else {
+ file++; /* wing it -- not correct on all OSes */
+ }
} else {
- update_pos_dev(dev); /* update position */
- stat = 1;
+ update_pos(dcr); /* update position */
}
- Dmsg1(200, "EOD dev->file=%d\n", dev->file);
- return stat;
+ Dmsg1(200, "EOD dev->file=%d\n", file);
+ return ok;
}
/*
- * Set the position of the device -- only for files
+ * Set the position of the device -- only for files and DVD
* For other devices, there is no generic way to do it.
- * Returns: 1 on succes
- * 0 on error
+ * Returns: true on succes
+ * false on error
*/
-int update_pos_dev(DEVICE *dev)
+bool DEVICE::update_pos(DCR *dcr)
{
- off_t pos;
- int stat = 0;
+ boffset_t pos;
+ bool ok = true;
- if (dev->fd < 0) {
- dev->dev_errno = EBADF;
- Mmsg0(&dev->errmsg, _("Bad device call. Archive not open\n"));
- Emsg0(M_FATAL, 0, dev->errmsg);
- return 0;
+ if (!is_open()) {
+ dev_errno = EBADF;
+ Mmsg0(errmsg, _("Bad device call. Device not open\n"));
+ Emsg1(M_FATAL, 0, "%s", errmsg);
+ return false;
}
/* Find out where we are */
- if (dev->state & ST_FILE) {
- dev->file = 0;
- dev->file_addr = 0;
- pos = lseek(dev->fd, (off_t)0, SEEK_CUR);
+ if (is_file() || is_dvd()) {
+ file = 0;
+ file_addr = 0;
+ pos = lseek(dcr, (boffset_t)0, SEEK_CUR);
if (pos < 0) {
- Pmsg1(000, "Seek error: ERR=%s\n", strerror(dev->dev_errno));
- dev->dev_errno = errno;
- Mmsg2(&dev->errmsg, _("lseek error on %s. ERR=%s.\n"),
- dev->dev_name, strerror(dev->dev_errno));
+ berrno be;
+ dev_errno = errno;
+ Pmsg1(000, _("Seek error: ERR=%s\n"), be.strerror());
+ Mmsg2(errmsg, _("lseek error on %s. ERR=%s.\n"),
+ print_name(), be.strerror());
+ ok = false;
} else {
- stat = 1;
- dev->file_addr = pos;
+ file_addr = pos;
+ block_num = (uint32_t)pos;
+ file = (uint32_t)(pos >> 32);
}
- return stat;
}
- return 1;
+ return ok;
}
-
-/*
+/*
* Return the status of the device. This was meant
* to be a generic routine. Unfortunately, it doesn't
* seem possible (at least I do not know how to do it
* currently), which means that for the moment, this
* routine has very little value.
*
- * Returns: 1 on success
- * 0 on error
+ * Returns: status
*/
-int
-status_dev(DEVICE *dev, uint32_t *status)
+uint32_t status_dev(DEVICE *dev)
{
struct mtget mt_stat;
uint32_t stat = 0;
if (dev->state & (ST_EOT | ST_WEOT)) {
stat |= BMT_EOD;
- Dmsg0(-20, " EOD");
+ Pmsg0(-20, " EOD");
}
if (dev->state & ST_EOF) {
stat |= BMT_EOF;
- Dmsg0(-20, " EOF");
+ Pmsg0(-20, " EOF");
}
- if (dev->state & ST_TAPE) {
+ if (dev->is_tape()) {
stat |= BMT_TAPE;
- Dmsg0(-20," Driver status:");
- Dmsg2(-20," file=%d block=%d\n", dev->file, dev->block_num);
- if (ioctl(dev->fd, MTIOCGET, (char *)&mt_stat) < 0) {
- dev->dev_errno = errno;
- Mmsg2(&dev->errmsg, _("ioctl MTIOCGET error on %s. ERR=%s.\n"),
- dev->dev_name, strerror(dev->dev_errno));
- return 0;
+ Pmsg0(-20,_(" Bacula status:"));
+ Pmsg2(-20,_(" file=%d block=%d\n"), dev->file, dev->block_num);
+ if (tape_ioctl(dev->fd, MTIOCGET, (char *)&mt_stat) < 0) {
+ berrno be;
+ dev->dev_errno = errno;
+ Mmsg2(dev->errmsg, _("ioctl MTIOCGET error on %s. ERR=%s.\n"),
+ dev->print_name(), be.strerror());
+ return 0;
}
- Dmsg0(-20, " Device status:");
+ Pmsg0(-20, _(" Device status:"));
#if defined(HAVE_LINUX_OS)
if (GMT_EOF(mt_stat.mt_gstat)) {
- stat |= BMT_EOF;
- Dmsg0(-20, " EOF");
+ stat |= BMT_EOF;
+ Pmsg0(-20, " EOF");
}
if (GMT_BOT(mt_stat.mt_gstat)) {
- stat |= BMT_BOT;
- Dmsg0(-20, " BOT");
+ stat |= BMT_BOT;
+ Pmsg0(-20, " BOT");
}
if (GMT_EOT(mt_stat.mt_gstat)) {
- stat |= BMT_EOT;
- Dmsg0(-20, " EOT");
+ stat |= BMT_EOT;
+ Pmsg0(-20, " EOT");
}
if (GMT_SM(mt_stat.mt_gstat)) {
- stat |= BMT_SM;
- Dmsg0(-20, " SM");
+ stat |= BMT_SM;
+ Pmsg0(-20, " SM");
}
if (GMT_EOD(mt_stat.mt_gstat)) {
- stat |= BMT_EOD;
- Dmsg0(-20, " EOD");
+ stat |= BMT_EOD;
+ Pmsg0(-20, " EOD");
}
if (GMT_WR_PROT(mt_stat.mt_gstat)) {
- stat |= BMT_WR_PROT;
- Dmsg0(-20, " WR_PROT");
+ stat |= BMT_WR_PROT;
+ Pmsg0(-20, " WR_PROT");
}
if (GMT_ONLINE(mt_stat.mt_gstat)) {
- stat |= BMT_ONLINE;
- Dmsg0(-20, " ONLINE");
+ stat |= BMT_ONLINE;
+ Pmsg0(-20, " ONLINE");
}
if (GMT_DR_OPEN(mt_stat.mt_gstat)) {
- stat |= BMT_DR_OPEN;
- Dmsg0(-20, " DR_OPEN");
+ stat |= BMT_DR_OPEN;
+ Pmsg0(-20, " DR_OPEN");
}
if (GMT_IM_REP_EN(mt_stat.mt_gstat)) {
- stat |= BMT_IM_REP_EN;
- Dmsg0(-20, " IM_REP_EN");
+ stat |= BMT_IM_REP_EN;
+ Pmsg0(-20, " IM_REP_EN");
+ }
+#elif defined(HAVE_WIN32)
+ if (GMT_EOF(mt_stat.mt_gstat)) {
+ stat |= BMT_EOF;
+ Pmsg0(-20, " EOF");
+ }
+ if (GMT_BOT(mt_stat.mt_gstat)) {
+ stat |= BMT_BOT;
+ Pmsg0(-20, " BOT");
+ }
+ if (GMT_EOT(mt_stat.mt_gstat)) {
+ stat |= BMT_EOT;
+ Pmsg0(-20, " EOT");
+ }
+ if (GMT_EOD(mt_stat.mt_gstat)) {
+ stat |= BMT_EOD;
+ Pmsg0(-20, " EOD");
+ }
+ if (GMT_WR_PROT(mt_stat.mt_gstat)) {
+ stat |= BMT_WR_PROT;
+ Pmsg0(-20, " WR_PROT");
}
+ if (GMT_ONLINE(mt_stat.mt_gstat)) {
+ stat |= BMT_ONLINE;
+ Pmsg0(-20, " ONLINE");
+ }
+ if (GMT_DR_OPEN(mt_stat.mt_gstat)) {
+ stat |= BMT_DR_OPEN;
+ Pmsg0(-20, " DR_OPEN");
+ }
+ if (GMT_IM_REP_EN(mt_stat.mt_gstat)) {
+ stat |= BMT_IM_REP_EN;
+ Pmsg0(-20, " IM_REP_EN");
+ }
+
#endif /* !SunOS && !OSF */
- Dmsg2(-20, " file=%d block=%d\n", mt_stat.mt_fileno, mt_stat.mt_blkno);
+ if (dev->has_cap(CAP_MTIOCGET)) {
+ Pmsg2(-20, _(" file=%d block=%d\n"), mt_stat.mt_fileno, mt_stat.mt_blkno);
+ } else {
+ Pmsg2(-20, _(" file=%d block=%d\n"), -1, -1);
+ }
} else {
stat |= BMT_ONLINE | BMT_BOT;
}
- *status = stat;
- return 1;
+ return stat;
}
/*
* Load medium in device
- * Returns: 1 on success
- * 0 on failure
+ * Returns: true on success
+ * false on failure
*/
-int load_dev(DEVICE *dev)
+bool load_dev(DEVICE *dev)
{
#ifdef MTLOAD
struct mtop mt_com;
if (dev->fd < 0) {
dev->dev_errno = EBADF;
- Mmsg0(&dev->errmsg, _("Bad call to load_dev. Archive not open\n"));
+ Mmsg0(dev->errmsg, _("Bad call to load_dev. Device not open\n"));
Emsg0(M_FATAL, 0, dev->errmsg);
- return 0;
+ return false;
}
- if (!(dev->state & ST_TAPE)) {
- return 1;
+ if (!(dev->is_tape())) {
+ return true;
}
#ifndef MTLOAD
Dmsg0(200, "stored: MTLOAD command not available\n");
- dev->dev_errno = ENOTTY; /* function not available */
- Mmsg2(&dev->errmsg, _("ioctl MTLOAD error on %s. ERR=%s.\n"),
- dev->dev_name, strerror(dev->dev_errno)); return 0;
- return 0;
+ berrno be;
+ dev->dev_errno = ENOTTY; /* function not available */
+ Mmsg2(dev->errmsg, _("ioctl MTLOAD error on %s. ERR=%s.\n"),
+ dev->print_name(), be.strerror());
+ return false;
#else
dev->block_num = dev->file = 0;
+ dev->file_size = 0;
dev->file_addr = 0;
mt_com.mt_op = MTLOAD;
mt_com.mt_count = 1;
- if (ioctl(dev->fd, MTIOCTOP, (char *)&mt_com) < 0) {
+ if (tape_ioctl(dev->fd, MTIOCTOP, (char *)&mt_com) < 0) {
+ berrno be;
dev->dev_errno = errno;
- Mmsg2(&dev->errmsg, _("ioctl MTLOAD error on %s. ERR=%s.\n"),
- dev->dev_name, strerror(dev->dev_errno)); return 0;
+ Mmsg2(dev->errmsg, _("ioctl MTLOAD error on %s. ERR=%s.\n"),
+ dev->print_name(), be.strerror());
+ return false;
}
- return 1;
+ return true;
#endif
}
/*
* Rewind device and put it offline
- * Returns: 1 on success
- * 0 on failure
+ * Returns: true on success
+ * false on failure
*/
-int offline_dev(DEVICE *dev)
+bool DEVICE::offline()
{
struct mtop mt_com;
- if (dev->fd < 0) {
- dev->dev_errno = EBADF;
- Mmsg0(&dev->errmsg, _("Bad call to load_dev. Archive not open\n"));
- Emsg0(M_FATAL, 0, dev->errmsg);
- return 0;
- }
- if (!(dev->state & ST_TAPE)) {
- return 1;
+ if (!is_tape()) {
+ return true; /* device not open */
}
- dev->block_num = dev->file = 0;
- dev->file_addr = 0;
-#ifdef MTUNLOCK
- mt_com.mt_op = MTUNLOCK;
- mt_com.mt_count = 1;
- ioctl(dev->fd, MTIOCTOP, (char *)&mt_com);
-#endif
+ state &= ~(ST_APPEND|ST_READ|ST_EOT|ST_EOF|ST_WEOT); /* remove EOF/EOT flags */
+ block_num = file = 0;
+ file_size = 0;
+ file_addr = 0;
+ unlock_door();
mt_com.mt_op = MTOFFL;
mt_com.mt_count = 1;
- if (ioctl(dev->fd, MTIOCTOP, (char *)&mt_com) < 0) {
- dev->dev_errno = errno;
- Mmsg2(&dev->errmsg, _("ioctl MTOFFL error on %s. ERR=%s.\n"),
- dev->dev_name, strerror(dev->dev_errno));
- return 0;
- }
- Dmsg1(100, "Offlined device %s\n", dev->dev_name);
- return 1;
+ if (tape_ioctl(fd, MTIOCTOP, (char *)&mt_com) < 0) {
+ berrno be;
+ dev_errno = errno;
+ Mmsg2(errmsg, _("ioctl MTOFFL error on %s. ERR=%s.\n"),
+ print_name(), be.strerror());
+ return false;
+ }
+ Dmsg1(100, "Offlined device %s\n", print_name());
+ return true;
}
-int offline_or_rewind_dev(DEVICE *dev)
+bool DEVICE::offline_or_rewind()
{
- if (dev_cap(dev, CAP_OFFLINEUNMOUNT)) {
- return offline_dev(dev);
+ if (fd < 0) {
+ return false;
+ }
+ if (has_cap(CAP_OFFLINEUNMOUNT)) {
+ return offline();
} else {
- /*
+ /*
* Note, this rewind probably should not be here (it wasn't
* in prior versions of Bacula), but on FreeBSD, this is
* needed in the case the tape was "frozen" due to an error
* such as backspacing after writing and EOF. If it is not
* done, all future references to the drive get and I/O error.
*/
- return rewind_dev(dev);
+ clrerror(MTREW);
+ return rewind(NULL);
}
}
-/*
- * Foward space a file
- * Returns: 1 on success
- * 0 on failure
+/*
+ * Foward space a file
+ * Returns: true on success
+ * false on failure
*/
-int
-fsf_dev(DEVICE *dev, int num)
-{
+bool DEVICE::fsf(int num)
+{
+ struct mtget mt_stat;
struct mtop mt_com;
int stat = 0;
- if (dev->fd < 0) {
- dev->dev_errno = EBADF;
- Mmsg0(&dev->errmsg, _("Bad call to fsf_dev. Archive not open\n"));
- Emsg0(M_FATAL, 0, dev->errmsg);
- return 0;
+ if (!is_open()) {
+ dev_errno = EBADF;
+ Mmsg0(errmsg, _("Bad call to fsf. Device not open\n"));
+ Emsg0(M_FATAL, 0, errmsg);
+ return false;
}
- if (!(dev->state & ST_TAPE)) {
- return 1;
+ if (!is_tape()) {
+ return true;
}
- if (dev->state & ST_EOT) {
- dev->dev_errno = 0;
- Mmsg1(&dev->errmsg, _("Device %s at End of Tape.\n"), dev->dev_name);
- return 0;
+
+ if (at_eot()) {
+ dev_errno = 0;
+ Mmsg1(errmsg, _("Device %s at End of Tape.\n"), print_name());
+ return false;
}
- if (dev->state & ST_EOF) {
+ if (at_eof()) {
Dmsg0(200, "ST_EOF set on entry to FSF\n");
}
- if (dev->state & ST_EOT) {
- Dmsg0(200, "ST_EOT set on entry to FSF\n");
- }
-
- Dmsg0(29, "fsf_dev\n");
- dev->block_num = 0;
- if (dev_cap(dev, CAP_FSF)) {
+
+ Dmsg0(100, "fsf\n");
+ block_num = 0;
+ /*
+ * If Fast forward space file is set, then we
+ * use MTFSF to forward space and MTIOCGET
+ * to get the file position. We assume that
+ * the SCSI driver will ensure that we do not
+ * forward space past the end of the medium.
+ */
+ if (has_cap(CAP_FSF) && has_cap(CAP_MTIOCGET) && has_cap(CAP_FASTFSF)) {
+ mt_com.mt_op = MTFSF;
+ mt_com.mt_count = num;
+ stat = tape_ioctl(fd, MTIOCTOP, (char *)&mt_com);
+ if (stat < 0 || !dev_get_os_pos(this, &mt_stat)) {
+ berrno be;
+ set_eot();
+ Dmsg0(200, "Set ST_EOT\n");
+ clrerror(MTFSF);
+ Mmsg2(errmsg, _("ioctl MTFSF error on %s. ERR=%s.\n"),
+ print_name(), be.strerror());
+ Dmsg1(200, "%s", errmsg);
+ return false;
+ }
+ Dmsg2(200, "fsf file=%d block=%d\n", mt_stat.mt_fileno, mt_stat.mt_blkno);
+ set_ateof();
+ file = mt_stat.mt_fileno;
+ return true;
+
+ /*
+ * Here if CAP_FSF is set, and virtually all drives
+ * these days support it, we read a record, then forward
+ * space one file. Using this procedure, which is slow,
+ * is the only way we can be sure that we don't read
+ * two consecutive EOF marks, which means End of Data.
+ */
+ } else if (has_cap(CAP_FSF)) {
POOLMEM *rbuf;
int rbuf_len;
Dmsg0(200, "FSF has cap_fsf\n");
- if (dev->max_block_size == 0) {
- rbuf_len = DEFAULT_BLOCK_SIZE;
+ if (max_block_size == 0) {
+ rbuf_len = DEFAULT_BLOCK_SIZE;
} else {
- rbuf_len = dev->max_block_size;
+ rbuf_len = max_block_size;
}
rbuf = get_memory(rbuf_len);
mt_com.mt_op = MTFSF;
mt_com.mt_count = 1;
- while (num-- && !(dev->state & ST_EOT)) {
- Dmsg0(200, "Doing read before fsf\n");
- if ((stat = read(dev->fd, (char *)rbuf, rbuf_len)) < 0) {
- if (errno == ENOMEM) { /* tape record exceeds buf len */
- stat = rbuf_len; /* This is OK */
- } else {
- dev->state |= ST_EOT;
- clrerror_dev(dev, -1);
- Dmsg2(200, "Set ST_EOT read errno=%d. ERR=%s\n", dev->dev_errno,
- strerror(dev->dev_errno));
- Mmsg2(&dev->errmsg, _("read error on %s. ERR=%s.\n"),
- dev->dev_name, strerror(dev->dev_errno));
- Dmsg1(200, "%s", dev->errmsg);
- break;
- }
- }
- if (stat == 0) { /* EOF */
- update_pos_dev(dev);
- Dmsg1(200, "End of File mark from read. File=%d\n", dev->file+1);
- /* Two reads of zero means end of tape */
- if (dev->state & ST_EOF) {
- dev->state |= ST_EOT;
- Dmsg0(200, "Set ST_EOT\n");
- break;
- } else {
- dev->state |= ST_EOF;
- dev->file++;
- dev->file_addr = 0;
- continue;
- }
- } else { /* Got data */
- dev->state &= ~(ST_EOF|ST_EOT);
- }
-
- Dmsg0(200, "Doing MTFSF\n");
- stat = ioctl(dev->fd, MTIOCTOP, (char *)&mt_com);
- if (stat < 0) { /* error => EOT */
- dev->state |= ST_EOT;
- Dmsg0(200, "Set ST_EOT\n");
- clrerror_dev(dev, MTFSF);
- Mmsg2(&dev->errmsg, _("ioctl MTFSF error on %s. ERR=%s.\n"),
- dev->dev_name, strerror(dev->dev_errno));
- Dmsg0(200, "Got < 0 for MTFSF\n");
- Dmsg1(200, "%s", dev->errmsg);
- } else {
- dev->state |= ST_EOF; /* just read EOF */
- dev->file++;
- dev->file_addr = 0;
- }
+ while (num-- && !at_eot()) {
+ Dmsg0(100, "Doing read before fsf\n");
+ if ((stat = this->read((char *)rbuf, rbuf_len)) < 0) {
+ if (errno == ENOMEM) { /* tape record exceeds buf len */
+ stat = rbuf_len; /* This is OK */
+ /*
+ * On IBM drives, they return ENOSPC at EOM
+ * instead of EOF status
+ */
+ } else if (at_eof() && errno == ENOSPC) {
+ stat = 0;
+ } else {
+ berrno be;
+ set_eot();
+ clrerror(-1);
+ Dmsg2(100, "Set ST_EOT read errno=%d. ERR=%s\n", dev_errno,
+ be.strerror());
+ Mmsg2(errmsg, _("read error on %s. ERR=%s.\n"),
+ print_name(), be.strerror());
+ Dmsg1(100, "%s", errmsg);
+ break;
+ }
+ }
+ if (stat == 0) { /* EOF */
+ Dmsg1(100, "End of File mark from read. File=%d\n", file+1);
+ /* Two reads of zero means end of tape */
+ if (at_eof()) {
+ set_eot();
+ Dmsg0(100, "Set ST_EOT\n");
+ break;
+ } else {
+ set_ateof();
+ continue;
+ }
+ } else { /* Got data */
+ clear_eot();
+ clear_eof();
+ }
+
+ Dmsg0(100, "Doing MTFSF\n");
+ stat = tape_ioctl(fd, MTIOCTOP, (char *)&mt_com);
+ if (stat < 0) { /* error => EOT */
+ berrno be;
+ set_eot();
+ Dmsg0(100, "Set ST_EOT\n");
+ clrerror(MTFSF);
+ Mmsg2(errmsg, _("ioctl MTFSF error on %s. ERR=%s.\n"),
+ print_name(), be.strerror());
+ Dmsg0(100, "Got < 0 for MTFSF\n");
+ Dmsg1(100, "%s", errmsg);
+ } else {
+ set_ateof();
+ }
}
free_memory(rbuf);
-
+
/*
* No FSF, so use FSR to simulate it
*/
} else {
Dmsg0(200, "Doing FSR for FSF\n");
- while (num-- && !(dev->state & ST_EOT)) {
- fsr_dev(dev, INT32_MAX); /* returns -1 on EOF or EOT */
+ while (num-- && !at_eot()) {
+ fsr(INT32_MAX); /* returns -1 on EOF or EOT */
}
- if (dev->state & ST_EOT) {
- dev->dev_errno = 0;
- Mmsg1(&dev->errmsg, _("Device %s at End of Tape.\n"), dev->dev_name);
- stat = -1;
+ if (at_eot()) {
+ dev_errno = 0;
+ Mmsg1(errmsg, _("Device %s at End of Tape.\n"), print_name());
+ stat = -1;
} else {
- stat = 0;
+ stat = 0;
}
}
- update_pos_dev(dev);
Dmsg1(200, "Return %d from FSF\n", stat);
- if (dev->state & ST_EOF)
+ if (at_eof()) {
Dmsg0(200, "ST_EOF set on exit FSF\n");
- if (dev->state & ST_EOT)
+ }
+ if (at_eot()) {
Dmsg0(200, "ST_EOT set on exit FSF\n");
- Dmsg1(200, "Return from FSF file=%d\n", dev->file);
- return stat == 0 ? 1 : 0;
+ }
+ Dmsg1(200, "Return from FSF file=%d\n", file);
+ return stat == 0;
}
-/*
- * Backward space a file
+/*
+ * Backward space a file
+ * Returns: false on failure
+ * true on success
*/
-int
-bsf_dev(DEVICE *dev, int num)
-{
+bool DEVICE::bsf(int num)
+{
struct mtop mt_com;
int stat;
- if (dev->fd < 0) {
- dev->dev_errno = EBADF;
- Mmsg0(&dev->errmsg, _("Bad call to fsf_dev. Archive not open\n"));
- Emsg0(M_FATAL, 0, dev->errmsg);
- return -1;
+ if (!is_open()) {
+ dev_errno = EBADF;
+ Mmsg0(errmsg, _("Bad call to bsf. Device not open\n"));
+ Emsg0(M_FATAL, 0, errmsg);
+ return false;
}
- if (!(dev->state & ST_TAPE)) {
- return 0;
+ if (!is_tape()) {
+ Mmsg1(errmsg, _("Device %s cannot BSF because it is not a tape.\n"),
+ print_name());
+ return false;
}
- Dmsg0(29, "bsf_dev\n");
- dev->state &= ~(ST_EOT|ST_EOF);
- dev->file -= num;
- dev->file_addr = 0;
+
+ Dmsg0(29, "bsf\n");
+ clear_eot();
+ clear_eof();
+ file -= num;
+ file_addr = 0;
+ file_size = 0;
mt_com.mt_op = MTBSF;
mt_com.mt_count = num;
- stat = ioctl(dev->fd, MTIOCTOP, (char *)&mt_com);
+ stat = tape_ioctl(fd, MTIOCTOP, (char *)&mt_com);
if (stat < 0) {
- clrerror_dev(dev, MTBSF);
- Mmsg2(&dev->errmsg, _("ioctl MTBSF error on %s. ERR=%s.\n"),
- dev->dev_name, strerror(dev->dev_errno));
+ berrno be;
+ clrerror(MTBSF);
+ Mmsg2(errmsg, _("ioctl MTBSF error on %s. ERR=%s.\n"),
+ print_name(), be.strerror());
}
- update_pos_dev(dev);
- return stat;
+ return stat == 0;
}
-/*
- * Foward space a record
+/*
+ * Foward space num records
+ * Returns: false on failure
+ * true on success
*/
-int
-fsr_dev(DEVICE *dev, int num)
-{
+bool DEVICE::fsr(int num)
+{
struct mtop mt_com;
int stat;
- if (dev->fd < 0) {
- dev->dev_errno = EBADF;
- Mmsg0(&dev->errmsg, _("Bad call to fsf_dev. Archive not open\n"));
- Emsg0(M_FATAL, 0, dev->errmsg);
- return -1;
+ if (!is_open()) {
+ dev_errno = EBADF;
+ Mmsg0(errmsg, _("Bad call to fsr. Device not open\n"));
+ Emsg0(M_FATAL, 0, errmsg);
+ return false;
}
- if (!(dev->state & ST_TAPE)) {
- return 0;
+ if (!is_tape()) {
+ return false;
}
- Dmsg0(29, "fsr_dev\n");
- dev->block_num += num;
+
+ if (!has_cap(CAP_FSR)) {
+ Mmsg1(errmsg, _("ioctl MTFSR not permitted on %s.\n"), print_name());
+ return false;
+ }
+
+ Dmsg1(29, "fsr %d\n", num);
mt_com.mt_op = MTFSR;
mt_com.mt_count = num;
- stat = ioctl(dev->fd, MTIOCTOP, (char *)&mt_com);
+ stat = tape_ioctl(fd, MTIOCTOP, (char *)&mt_com);
if (stat == 0) {
- dev->state &= ~ST_EOF;
+ clear_eof();
+ block_num += num;
} else {
- if (dev->state & ST_EOF) {
- dev->state |= ST_EOT;
+ berrno be;
+ struct mtget mt_stat;
+ clrerror(MTFSR);
+ Dmsg1(100, "FSF fail: ERR=%s\n", be.strerror());
+ if (dev_get_os_pos(this, &mt_stat)) {
+ Dmsg4(100, "Adjust from %d:%d to %d:%d\n", file,
+ block_num, mt_stat.mt_fileno, mt_stat.mt_blkno);
+ file = mt_stat.mt_fileno;
+ block_num = mt_stat.mt_blkno;
} else {
- dev->state |= ST_EOF; /* assume EOF */
- dev->file++;
- dev->file_addr = 0;
+ if (at_eof()) {
+ set_eot();
+ } else {
+ set_ateof();
+ }
}
- clrerror_dev(dev, MTFSR);
- Mmsg2(&dev->errmsg, _("ioctl MTFSR error on %s. ERR=%s.\n"),
- dev->dev_name, strerror(dev->dev_errno));
+ Mmsg3(errmsg, _("ioctl MTFSR %d error on %s. ERR=%s.\n"),
+ num, print_name(), be.strerror());
}
- update_pos_dev(dev);
- return stat;
+ return stat == 0;
}
-/*
+/*
* Backward space a record
- * Returns: 0 on success
- * -1 on failure
+ * Returns: false on failure
+ * true on success
*/
-int
-bsr_dev(DEVICE *dev, int num)
-{
+bool DEVICE::bsr(int num)
+{
struct mtop mt_com;
int stat;
- if (dev->fd < 0) {
- dev->dev_errno = EBADF;
- Mmsg0(&dev->errmsg, _("Bad call to fsf_dev. Archive not open\n"));
- Emsg0(M_FATAL, 0, dev->errmsg);
- return -1;
+ if (!is_open()) {
+ dev_errno = EBADF;
+ Mmsg0(errmsg, _("Bad call to bsr_dev. Device not open\n"));
+ Emsg0(M_FATAL, 0, errmsg);
+ return false;
}
- if (!(dev->state & ST_TAPE)) {
- return 0;
+ if (!is_tape()) {
+ return false;
}
- if (!dev_cap(dev, CAP_BSR)) {
- Mmsg1(&dev->errmsg, _("ioctl MTBSR not permitted on %s.\n"),
- dev->dev_name);
- return 0;
+ if (!has_cap(CAP_BSR)) {
+ Mmsg1(errmsg, _("ioctl MTBSR not permitted on %s.\n"), print_name());
+ return false;
}
Dmsg0(29, "bsr_dev\n");
- dev->block_num -= num;
- dev->state &= ~(ST_EOF|ST_EOT|ST_EOF);
+ block_num -= num;
+ clear_eof();
+ clear_eot();
mt_com.mt_op = MTBSR;
mt_com.mt_count = num;
- stat = ioctl(dev->fd, MTIOCTOP, (char *)&mt_com);
+ stat = tape_ioctl(fd, MTIOCTOP, (char *)&mt_com);
if (stat < 0) {
- clrerror_dev(dev, MTBSR);
- Mmsg2(&dev->errmsg, _("ioctl MTBSR error on %s. ERR=%s.\n"),
- dev->dev_name, strerror(dev->dev_errno));
+ berrno be;
+ clrerror(MTBSR);
+ Mmsg2(errmsg, _("ioctl MTBSR error on %s. ERR=%s.\n"),
+ print_name(), be.strerror());
}
- update_pos_dev(dev);
- return stat;
+ return stat == 0;
+}
+
+void DEVICE::lock_door()
+{
+#ifdef MTLOCK
+ struct mtop mt_com;
+ mt_com.mt_op = MTLOCK;
+ mt_com.mt_count = 1;
+ tape_ioctl(fd, MTIOCTOP, (char *)&mt_com);
+#endif
+}
+
+void DEVICE::unlock_door()
+{
+#ifdef MTUNLOCK
+ struct mtop mt_com;
+ mt_com.mt_op = MTUNLOCK;
+ mt_com.mt_count = 1;
+ tape_ioctl(fd, MTIOCTOP, (char *)&mt_com);
+#endif
+}
+
+
+/*
+ * Reposition the device to file, block
+ * Returns: false on failure
+ * true on success
+ */
+bool DEVICE::reposition(DCR *dcr, uint32_t rfile, uint32_t rblock)
+{
+ if (!is_open()) {
+ dev_errno = EBADF;
+ Mmsg0(errmsg, _("Bad call to reposition. Device not open\n"));
+ Emsg0(M_FATAL, 0, errmsg);
+ return false;
+ }
+
+ if (!is_tape()) {
+ boffset_t pos = (((boffset_t)rfile)<<32) | rblock;
+ Dmsg1(100, "===== lseek to %d\n", (int)pos);
+ if (lseek(dcr, pos, SEEK_SET) == (boffset_t)-1) {
+ berrno be;
+ dev_errno = errno;
+ Mmsg2(errmsg, _("lseek error on %s. ERR=%s.\n"),
+ print_name(), be.strerror());
+ return false;
+ }
+ file = rfile;
+ block_num = rblock;
+ file_addr = pos;
+ return true;
+ }
+
+ /* After this point, we are tape only */
+ Dmsg4(100, "reposition from %u:%u to %u:%u\n", file, block_num, rfile, rblock);
+ if (rfile < file) {
+ Dmsg0(100, "Rewind\n");
+ if (!rewind(NULL)) {
+ return false;
+ }
+ }
+ if (rfile > file) {
+ Dmsg1(100, "fsf %d\n", rfile-file);
+ if (!fsf(rfile-file)) {
+ Dmsg1(100, "fsf failed! ERR=%s\n", bstrerror());
+ return false;
+ }
+ Dmsg2(100, "wanted_file=%d at_file=%d\n", rfile, file);
+ }
+ if (rblock < block_num) {
+ Dmsg2(100, "wanted_blk=%d at_blk=%d\n", rblock, block_num);
+ Dmsg0(100, "bsf 1\n");
+ bsf(1);
+ Dmsg0(100, "fsf 1\n");
+ fsf(1);
+ Dmsg2(100, "wanted_blk=%d at_blk=%d\n", rblock, block_num);
+ }
+ if (has_cap(CAP_POSITIONBLOCKS) && rblock > block_num) {
+ /* Ignore errors as Bacula can read to the correct block */
+ Dmsg1(100, "fsr %d\n", rblock-block_num);
+ return fsr(rblock-block_num);
+ } else {
+ while (rblock > block_num) {
+ if (!read_block_from_dev(dcr, NO_BLOCK_NUMBER_CHECK)) {
+ berrno be;
+ dev_errno = errno;
+ Dmsg2(30, "Failed to find requested block on %s: ERR=%s",
+ print_name(), be.strerror());
+ return false;
+ }
+ Dmsg2(300, "moving forward wanted_blk=%d at_blk=%d\n", rblock, block_num);
+ }
+ }
+ return true;
}
/*
* Write an end of file on the device
- * Returns: 0 on success
- * non-zero on failure
+ * Returns: true on success
+ * false on failure
*/
-int
-weof_dev(DEVICE *dev, int num)
-{
+bool DEVICE::weof(int num)
+{
struct mtop mt_com;
int stat;
-
- if (dev->fd < 0) {
- dev->dev_errno = EBADF;
- Mmsg0(&dev->errmsg, _("Bad call to fsf_dev. Archive not open\n"));
- Emsg0(M_FATAL, 0, dev->errmsg);
- return -1;
+ Dmsg0(129, "weof_dev\n");
+
+ if (!is_open()) {
+ dev_errno = EBADF;
+ Mmsg0(errmsg, _("Bad call to weof_dev. Device not open\n"));
+ Emsg0(M_FATAL, 0, errmsg);
+ return false;
}
+ file_size = 0;
- if (!(dev->state & ST_TAPE)) {
- return 0;
+ if (!is_tape()) {
+ return true;
+ }
+ if (!can_append()) {
+ Mmsg0(errmsg, _("Attempt to WEOF on non-appendable Volume\n"));
+ Emsg0(M_FATAL, 0, errmsg);
+ return false;
}
- dev->state &= ~(ST_EOT | ST_EOF); /* remove EOF/EOT flags */
- dev->block_num = 0;
- Dmsg0(29, "weof_dev\n");
+
+ clear_eof();
+ clear_eot();
mt_com.mt_op = MTWEOF;
mt_com.mt_count = num;
- stat = ioctl(dev->fd, MTIOCTOP, (char *)&mt_com);
+ stat = tape_ioctl(fd, MTIOCTOP, (char *)&mt_com);
if (stat == 0) {
- dev->file++;
- dev->file_addr = 0;
+ block_num = 0;
+ file += num;
+ file_addr = 0;
} else {
- clrerror_dev(dev, MTWEOF);
- Mmsg2(&dev->errmsg, _("ioctl MTWEOF error on %s. ERR=%s.\n"),
- dev->dev_name, strerror(dev->dev_errno));
- }
- return stat;
-}
-
-/*
- * Return string message with last error in English
- * Be careful not to call this routine from within dev.c
- * while editing an Mmsg(&) or you will end up in a recursive
- * loop creating a Segmentation Violation.
- */
-char *
-strerror_dev(DEVICE *dev)
-{
- return dev->errmsg;
+ berrno be;
+ clrerror(MTWEOF);
+ if (stat == -1) {
+ Mmsg2(errmsg, _("ioctl MTWEOF error on %s. ERR=%s.\n"),
+ print_name(), be.strerror());
+ }
+ }
+ return stat == 0;
}
* If implemented in system, clear the tape
* error status.
*/
-void
-clrerror_dev(DEVICE *dev, int func)
+void DEVICE::clrerror(int func)
{
- char *msg = NULL;
+ const char *msg = NULL;
+ struct mtget mt_stat;
+ char buf[100];
- dev->dev_errno = errno; /* save errno */
+ dev_errno = errno; /* save errno */
if (errno == EIO) {
- dev->VolCatInfo.VolCatErrors++;
+ VolCatInfo.VolCatErrors++;
}
- if (!(dev->state & ST_TAPE)) {
+ if (!is_tape()) {
return;
}
+
if (errno == ENOTTY || errno == ENOSYS) { /* Function not implemented */
switch (func) {
- case -1:
- Emsg0(M_ABORT, 0, "Got ENOTTY on read/write!\n");
- break;
- case MTWEOF:
- msg = "WTWEOF";
- dev->capabilities &= ~CAP_EOF; /* turn off feature */
- break;
+ case -1:
+ break; /* ignore message printed later */
+ case MTWEOF:
+ msg = "WTWEOF";
+ clear_cap(CAP_EOF); /* turn off feature */
+ break;
#ifdef MTEOM
- case MTEOM:
- msg = "WTEOM";
- dev->capabilities &= ~CAP_EOM; /* turn off feature */
- break;
-#endif
- case MTFSF:
- msg = "MTFSF";
- dev->capabilities &= ~CAP_FSF; /* turn off feature */
- break;
- case MTBSF:
- msg = "MTBSF";
- dev->capabilities &= ~CAP_BSF; /* turn off feature */
- break;
- case MTFSR:
- msg = "MTFSR";
- dev->capabilities &= ~CAP_FSR; /* turn off feature */
- break;
- case MTBSR:
- msg = "MTBSR";
- dev->capabilities &= ~CAP_BSR; /* turn off feature */
- break;
- default:
- msg = "Unknown";
- break;
+ case MTEOM:
+ msg = "WTEOM";
+ clear_cap(CAP_EOM); /* turn off feature */
+ break;
+#endif
+ case MTFSF:
+ msg = "MTFSF";
+ clear_cap(CAP_FSF); /* turn off feature */
+ break;
+ case MTBSF:
+ msg = "MTBSF";
+ clear_cap(CAP_BSF); /* turn off feature */
+ break;
+ case MTFSR:
+ msg = "MTFSR";
+ clear_cap(CAP_FSR); /* turn off feature */
+ break;
+ case MTBSR:
+ msg = "MTBSR";
+ clear_cap(CAP_BSR); /* turn off feature */
+ break;
+ case MTREW:
+ msg = "MTREW";
+ break;
+#ifdef MTSETBLK
+ case MTSETBLK:
+ msg = "MTSETBLK";
+ break;
+#endif
+#ifdef MTSETDRVBUFFER
+ case MTSETDRVBUFFER:
+ msg = "MTSETDRVBUFFER";
+ break;
+#endif
+#ifdef MTRESET
+ case MTRESET:
+ msg = "MTRESET";
+ break;
+#endif
+
+#ifdef MTSETBSIZ
+ case MTSETBSIZ:
+ msg = "MTSETBSIZ";
+ break;
+#endif
+#ifdef MTSRSZ
+ case MTSRSZ:
+ msg = "MTSRSZ";
+ break;
+#endif
+#ifdef MTLOAD
+ case MTLOAD:
+ msg = "MTLOAD";
+ break;
+#endif
+#ifdef MTUNLOCK
+ case MTUNLOCK:
+ msg = "MTUNLOCK";
+ break;
+#endif
+ case MTOFFL:
+ msg = "MTOFFL";
+ break;
+ default:
+ bsnprintf(buf, sizeof(buf), _("unknown func code %d"), func);
+ msg = buf;
+ break;
}
if (msg != NULL) {
- dev->dev_errno = ENOSYS;
- Mmsg1(&dev->errmsg, _("This device does not support %s.\n"), msg);
- Emsg0(M_ERROR, 0, dev->errmsg);
+ dev_errno = ENOSYS;
+ Mmsg1(errmsg, _("I/O function \"%s\" not supported on this device.\n"), msg);
+ Emsg0(M_ERROR, 0, errmsg);
}
}
+
+ /*
+ * Now we try different methods of clearing the error
+ * status on the drive so that it is not locked for
+ * further operations.
+ */
+
+ /* On some systems such as NetBSD, this clears all errors */
+ tape_ioctl(fd, MTIOCGET, (char *)&mt_stat);
+
/* Found on Linux */
#ifdef MTIOCLRERR
{
mt_com.mt_op = MTIOCLRERR;
mt_com.mt_count = 1;
/* Clear any error condition on the tape */
- ioctl(dev->fd, MTIOCTOP, (char *)&mt_com);
+ tape_ioctl(fd, MTIOCTOP, (char *)&mt_com);
Dmsg0(200, "Did MTIOCLRERR\n");
}
#endif
/* Typically on FreeBSD */
#ifdef MTIOCERRSTAT
{
+ berrno be;
/* Read and clear SCSI error status */
union mterrstat mt_errstat;
- Pmsg2(000, "Doing MTIOCERRSTAT errno=%d ERR=%s\n", dev->dev_errno,
- strerror(dev->dev_errno));
- ioctl(dev->fd, MTIOCERRSTAT, (char *)&mt_errstat);
+ Dmsg2(200, "Doing MTIOCERRSTAT errno=%d ERR=%s\n", dev_errno,
+ be.strerror(dev_errno));
+ tape_ioctl(fd, MTIOCERRSTAT, (char *)&mt_errstat);
+}
+#endif
+
+/* Clear Subsystem Exception OSF1 */
+#ifdef MTCSE
+{
+ struct mtop mt_com;
+ mt_com.mt_op = MTCSE;
+ mt_com.mt_count = 1;
+ /* Clear any error condition on the tape */
+ tape_ioctl(fd, MTIOCTOP, (char *)&mt_com);
+ Dmsg0(200, "Did MTCSE\n");
}
#endif
}
/*
- * Flush buffer contents
- * No longer used.
+ * Close the device
*/
-int flush_dev(DEVICE *dev)
+void DEVICE::close()
{
- return 1;
-}
+ Dmsg1(100, "close_dev %s\n", print_name());
+ if (has_cap(CAP_OFFLINEUNMOUNT)) {
+ offline();
+ }
-static void do_close(DEVICE *dev)
-{
+ if (!is_open()) {
+ Dmsg2(100, "device %s already closed vol=%s\n", print_name(),
+ VolHdr.VolumeName);
+ return; /* already closed */
+ }
+
+ switch (dev_type) {
+ case B_TAPE_DEV:
+ unlock_door();
+ tape_close(fd);
+ break;
+ default:
+ ::close(fd);
+ }
- Dmsg0(29, "really close_dev\n");
- close(dev->fd);
/* Clean up device packet so it can be reused */
- dev->fd = -1;
- dev->state &= ~(ST_OPENED|ST_LABEL|ST_READ|ST_APPEND|ST_EOT|ST_WEOT|ST_EOF);
- dev->file = dev->block_num = 0;
- dev->file_addr = 0;
- dev->EndFile = dev->EndBlock = 0;
- memset(&dev->VolCatInfo, 0, sizeof(dev->VolCatInfo));
- memset(&dev->VolHdr, 0, sizeof(dev->VolHdr));
- if (dev->tid) {
- stop_thread_timer(dev->tid);
- dev->tid = 0;
+ clear_opened();
+ state &= ~(ST_LABEL|ST_READ|ST_APPEND|ST_EOT|ST_WEOT|ST_EOF);
+ label_type = B_BACULA_LABEL;
+ file = block_num = 0;
+ file_size = 0;
+ file_addr = 0;
+ EndFile = EndBlock = 0;
+ openmode = 0;
+ Slot = -1; /* unknown slot */
+ free_volume(this);
+ memset(&VolCatInfo, 0, sizeof(VolCatInfo));
+ memset(&VolHdr, 0, sizeof(VolHdr));
+ if (tid) {
+ stop_thread_timer(tid);
+ tid = 0;
}
}
-/*
- * Close the device
+/*
+ * This call closes the device, but it is used in DVD handling
+ * where we close one part and then open the next part. The
+ * difference between close_part() and close() is that close_part()
+ * saves the state information of the device (e.g. the Volume lable,
+ * the Volume Catalog record, ... This permits opening and closing
+ * the Volume parts multiple times without losing track of what the
+ * main Volume parameters are.
*/
-void
-close_dev(DEVICE *dev)
+void DEVICE::close_part(DCR *dcr)
{
- if (!dev) {
- Mmsg0(&dev->errmsg, _("Bad call to fsf_dev. Archive not open\n"));
- Emsg0(M_FATAL, 0, dev->errmsg);
- return;
+ VOLUME_LABEL saveVolHdr;
+ VOLUME_CAT_INFO saveVolCatInfo; /* Volume Catalog Information */
+
+
+ saveVolHdr = VolHdr; /* structure assignment */
+ saveVolCatInfo = VolCatInfo; /* structure assignment */
+ close(); /* close current part */
+ VolHdr = saveVolHdr; /* structure assignment */
+ VolCatInfo = saveVolCatInfo; /* structure assignment */
+ dcr->VolCatInfo = saveVolCatInfo; /* structure assignment */
+}
+
+boffset_t DEVICE::lseek(DCR *dcr, boffset_t offset, int whence)
+{
+ switch (dev_type) {
+ case B_DVD_DEV:
+ return lseek_dvd(dcr, offset, whence);
+ case B_FILE_DEV:
+#if defined(HAVE_WIN32)
+ return ::_lseeki64(fd, (__int64)offset, whence);
+#else
+ return ::lseek(fd, (off_t)offset, whence);
+#endif
}
- if (dev->fd >= 0 && dev->use_count == 1) {
- do_close(dev);
+ return -1;
+}
+
+
+bool DEVICE::truncate(DCR *dcr) /* We need the DCR for DVD-writing */
+{
+ Dmsg1(100, "truncate %s\n", print_name());
+ switch (dev_type) {
+ case B_TAPE_DEV:
+ /* maybe we should rewind and write and eof ???? */
+ return true; /* we don't really truncate tapes */
+ case B_DVD_DEV:
+ return truncate_dvd(dcr);
+ case B_FILE_DEV:
+ /* ***FIXME*** we really need to unlink() the file so that
+ * its name can be changed for a relabel.
+ */
+ if (ftruncate(fd, 0) != 0) {
+ berrno be;
+ Mmsg2(errmsg, _("Unable to truncate device %s. ERR=%s\n"),
+ print_name(), be.strerror());
+ return false;
+ }
+ return true;
}
- dev->use_count--;
+ return false;
}
-/*
- * Used when unmounting the device
+/* Mount the device.
+ * If timeout, wait until the mount command returns 0.
+ * If !timeout, try to mount the device only once.
*/
-void force_close_dev(DEVICE *dev)
+bool DEVICE::mount(int timeout)
{
- if (!dev) {
- Mmsg0(&dev->errmsg, _("Bad call to fsf_dev. Archive not open\n"));
- Emsg0(M_FATAL, 0, dev->errmsg);
- return;
+ Dmsg0(190, "Enter mount\n");
+ if (is_mounted()) {
+ return true;
+ } else if (requires_mount()) {
+ return do_mount(1, timeout);
+ }
+ return true;
+}
+
+/* Unmount the device
+ * If timeout, wait until the unmount command returns 0.
+ * If !timeout, try to unmount the device only once.
+ */
+bool DEVICE::unmount(int timeout)
+{
+ Dmsg0(90, "Enter unmount\n");
+ if (is_mounted()) {
+ return do_mount(0, timeout);
}
- Dmsg0(29, "really close_dev\n");
- do_close(dev);
- dev->use_count--;
+ return true;
}
-int truncate_dev(DEVICE *dev)
+/* (Un)mount the device */
+bool DEVICE::do_mount(int mount, int dotimeout)
{
- if (dev->state & ST_TAPE) {
- return 1;
+ POOL_MEM ocmd(PM_FNAME);
+ POOLMEM *results;
+ char *icmd;
+ int status, timeout;
+
+ sm_check(__FILE__, __LINE__, false);
+ if (mount) {
+ if (is_mounted()) {
+ Dmsg0(200, "======= mount=1\n");
+ return true;
+ }
+ icmd = device->mount_command;
+ } else {
+ if (!is_mounted()) {
+ Dmsg0(200, "======= mount=0\n");
+ return true;
+ }
+ icmd = device->unmount_command;
}
- if (ftruncate(dev->fd, 0) != 0) {
- Mmsg1(&dev->errmsg, _("Unable to truncate device. ERR=%s\n"), strerror(errno));
- return 0;
+
+ clear_freespace_ok();
+ edit_mount_codes(ocmd, icmd);
+
+ Dmsg2(100, "do_mount: cmd=%s mounted=%d\n", ocmd.c_str(), !!is_mounted());
+
+ if (dotimeout) {
+ /* Try at most 1 time to (un)mount the device. This should perhaps be configurable. */
+ timeout = 1;
+ } else {
+ timeout = 0;
+ }
+ results = get_memory(4000);
+ results[0] = 0;
+
+ /* If busy retry each second */
+ Dmsg1(20, "do_mount run_prog=%s\n", ocmd.c_str());
+ while ((status = run_program_full_output(ocmd.c_str(),
+ max_open_wait/2, results)) != 0) {
+ /* Doesn't work with internationalization (This is not a problem) */
+ if (mount && fnmatch("*is already mounted on*", results, 0) == 0) {
+ break;
+ }
+ if (!mount && fnmatch("* not mounted*", results, 0) == 0) {
+ break;
+ }
+ if (timeout-- > 0) {
+ /* Sometimes the device cannot be mounted because it is already mounted.
+ * Try to unmount it, then remount it */
+ if (mount) {
+ Dmsg1(400, "Trying to unmount the device %s...\n", print_name());
+ do_mount(0, 0);
+ }
+ bmicrosleep(1, 0);
+ continue;
+ }
+ if (status != 0) {
+ berrno be;
+ Dmsg5(40, "Device %s cannot be %smounted. stat=%d result=%s ERR=%s\n", print_name(),
+ (mount ? "" : "un"), status, results, be.strerror(status));
+ Mmsg(errmsg, _("Device %s cannot be %smounted. ERR=%s\n"),
+ print_name(), (mount ? "" : "un"), be.strerror(status));
+ } else {
+ Dmsg4(40, "Device %s cannot be %smounted. stat=%d ERR=%s\n", print_name(),
+ (mount ? "" : "un"), status, results);
+ Mmsg(errmsg, _("Device %s cannot be %smounted. ERR=%s\n"),
+ print_name(), (mount ? "" : "un"), results);
+ }
+ /*
+ * Now, just to be sure it is not mounted, try to read the
+ * filesystem.
+ */
+ DIR* dp;
+ struct dirent *entry, *result;
+ int name_max;
+ int count;
+
+ name_max = pathconf(".", _PC_NAME_MAX);
+ if (name_max < 1024) {
+ name_max = 1024;
+ }
+
+ if (!(dp = opendir(device->mount_point))) {
+ berrno be;
+ dev_errno = errno;
+ Dmsg3(29, "do_mount: failed to open dir %s (dev=%s), ERR=%s\n",
+ device->mount_point, print_name(), be.strerror());
+ goto get_out;
+ }
+
+ entry = (struct dirent *)malloc(sizeof(struct dirent) + name_max + 1000);
+ count = 0;
+ while (1) {
+ if ((readdir_r(dp, entry, &result) != 0) || (result == NULL)) {
+ dev_errno = EIO;
+ Dmsg2(129, "do_mount: failed to find suitable file in dir %s (dev=%s)\n",
+ device->mount_point, print_name());
+ break;
+ }
+ if ((strcmp(result->d_name, ".")) && (strcmp(result->d_name, "..")) && (strcmp(result->d_name, ".keep"))) {
+ count++; /* result->d_name != ., .. or .keep (Gentoo-specific) */
+ break;
+ } else {
+ Dmsg2(129, "do_mount: ignoring %s in %s\n", result->d_name, device->mount_point);
+ }
+ }
+ free(entry);
+ closedir(dp);
+
+ Dmsg1(29, "do_mount: got %d files in the mount point (not counting ., .. and .keep)\n", count);
+
+ if (count > 0) {
+ /* If we got more than ., .. and .keep */
+ /* there must be something mounted */
+ if (mount) {
+ Dmsg1(100, "Did Mount by count=%d\n", count);
+ break;
+ } else {
+ /* An unmount request. We failed to unmount - report an error */
+ set_mounted(true);
+ free_pool_memory(results);
+ Dmsg0(200, "== error mount=1 wanted unmount\n");
+ return false;
+ }
+ }
+get_out:
+ set_mounted(false);
+ sm_check(__FILE__, __LINE__, false);
+ free_pool_memory(results);
+ Dmsg0(200, "============ mount=0\n");
+ return false;
}
- return 1;
+
+ set_mounted(mount); /* set/clear mounted flag */
+ free_pool_memory(results);
+ /* Do not check free space when unmounting */
+ if (mount && !update_freespace()) {
+ return false;
+ }
+ Dmsg1(200, "============ mount=%d\n", mount);
+ return true;
}
-int
-dev_is_tape(DEVICE *dev)
-{
- return (dev->state & ST_TAPE) ? 1 : 0;
+/*
+ * Edit codes into (Un)MountCommand, Write(First)PartCommand
+ * %% = %
+ * %a = archive device name
+ * %e = erase (set if cannot mount and first part)
+ * %n = part number
+ * %m = mount point
+ * %v = last part name
+ *
+ * omsg = edited output message
+ * imsg = input string containing edit codes (%x)
+ *
+ */
+void DEVICE::edit_mount_codes(POOL_MEM &omsg, const char *imsg)
+{
+ const char *p;
+ const char *str;
+ char add[20];
+
+ POOL_MEM archive_name(PM_FNAME);
+
+ omsg.c_str()[0] = 0;
+ Dmsg1(800, "edit_mount_codes: %s\n", imsg);
+ for (p=imsg; *p; p++) {
+ if (*p == '%') {
+ switch (*++p) {
+ case '%':
+ str = "%";
+ break;
+ case 'a':
+ str = dev_name;
+ break;
+ case 'e':
+ if (num_dvd_parts == 0) {
+ if (truncating || blank_dvd) {
+ str = "2";
+ } else {
+ str = "1";
+ }
+ } else {
+ str = "0";
+ }
+ break;
+ case 'n':
+ bsnprintf(add, sizeof(add), "%d", part);
+ str = add;
+ break;
+ case 'm':
+ str = device->mount_point;
+ break;
+ case 'v':
+ make_spooled_dvd_filename(this, archive_name);
+ str = archive_name.c_str();
+ break;
+ default:
+ add[0] = '%';
+ add[1] = *p;
+ add[2] = 0;
+ str = add;
+ break;
+ }
+ } else {
+ add[0] = *p;
+ add[1] = 0;
+ str = add;
+ }
+ Dmsg1(1900, "add_str %s\n", str);
+ pm_strcat(omsg, (char *)str);
+ Dmsg1(1800, "omsg=%s\n", omsg.c_str());
+ }
}
+/* return the last timer interval (ms) */
+btime_t DEVICE::get_timer_count()
+{
+ btime_t old = last_timer;
+ last_timer = get_current_btime();
+ return last_timer - old;
+}
-/*
- * return 1 if the device is read for write, and 0 otherwise
- * This is meant for checking at the end of a job to see
- * if we still have a tape (perhaps not if at end of tape
- * and the job is canceled).
- */
-int
-dev_can_write(DEVICE *dev)
+/* read from fd */
+ssize_t DEVICE::read(void *buf, size_t len)
{
- if ((dev->state & ST_OPENED) && (dev->state & ST_APPEND) &&
- (dev->state & ST_LABEL) && !(dev->state & ST_WEOT)) {
- return 1;
+ ssize_t read_len ;
+
+ get_timer_count();
+
+ if (this->is_tape()) {
+ read_len = tape_read(fd, buf, len);
} else {
- return 0;
+ read_len = ::read(fd, buf, len);
+ }
+
+ last_tick = get_timer_count();
+
+ DevReadTime += last_tick;
+ VolCatInfo.VolReadTime += last_tick;
+
+ if (read_len > 0) { /* skip error */
+ DevReadBytes += read_len;
}
+
+ return read_len;
}
-char *
-dev_name(DEVICE *dev)
+/* write to fd */
+ssize_t DEVICE::write(const void *buf, size_t len)
{
- return dev->dev_name;
+ ssize_t write_len ;
+
+ get_timer_count();
+
+ if (this->is_tape()) {
+ write_len = tape_write(fd, buf, len);
+ } else {
+ write_len = ::write(fd, buf, len);
+ }
+
+ last_tick = get_timer_count();
+
+ DevWriteTime += last_tick;
+ VolCatInfo.VolWriteTime += last_tick;
+
+ if (write_len > 0) { /* skip error */
+ DevWriteBytes += write_len;
+ }
+
+ return write_len;
+}
+
+/* Return the resource name for the device */
+const char *DEVICE::name() const
+{
+ return device->hdr.name;
}
char *
return dev->VolCatInfo.VolCatName;
}
-uint32_t dev_block(DEVICE *dev)
+
+/*
+ * Free memory allocated for the device
+ */
+void DEVICE::term(void)
{
- update_pos_dev(dev);
- return dev->block_num;
+ Dmsg1(900, "term dev: %s\n", print_name());
+ close();
+ if (dev_name) {
+ free_memory(dev_name);
+ dev_name = NULL;
+ }
+ if (prt_name) {
+ free_memory(prt_name);
+ prt_name = NULL;
+ }
+ if (errmsg) {
+ free_pool_memory(errmsg);
+ errmsg = NULL;
+ }
+ pthread_mutex_destroy(&mutex);
+ pthread_cond_destroy(&wait);
+ pthread_cond_destroy(&wait_next_vol);
+ pthread_mutex_destroy(&spool_mutex);
+ rwl_destroy(&lock);
+ if (attached_dcrs) {
+ delete attached_dcrs;
+ attached_dcrs = NULL;
+ }
+ if (device) {
+ device->dev = NULL;
+ }
+ free((char *)this);
}
-uint32_t dev_file(DEVICE *dev)
+/*
+ * This routine initializes the device wait timers
+ */
+void init_device_wait_timers(DCR *dcr)
{
- update_pos_dev(dev);
- return dev->file;
+ DEVICE *dev = dcr->dev;
+ JCR *jcr = dcr->jcr;
+
+ /* ******FIXME******* put these on config variables */
+ dev->min_wait = 60 * 60;
+ dev->max_wait = 24 * 60 * 60;
+ dev->max_num_wait = 9; /* 5 waits =~ 1 day, then 1 day at a time */
+ dev->wait_sec = dev->min_wait;
+ dev->rem_wait_sec = dev->wait_sec;
+ dev->num_wait = 0;
+ dev->poll = false;
+ dev->BadVolName[0] = 0;
+
+ jcr->min_wait = 60 * 60;
+ jcr->max_wait = 24 * 60 * 60;
+ jcr->max_num_wait = 9; /* 5 waits =~ 1 day, then 1 day at a time */
+ jcr->wait_sec = jcr->min_wait;
+ jcr->rem_wait_sec = jcr->wait_sec;
+ jcr->num_wait = 0;
+
}
-/*
- * Free memory allocated for the device
- */
-void
-term_dev(DEVICE *dev)
+void init_jcr_device_wait_timers(JCR *jcr)
{
- if (!dev) {
- dev->dev_errno = EBADF;
- Mmsg0(&dev->errmsg, _("Bad call to fsf_dev. Archive not open\n"));
- Emsg0(M_FATAL, 0, dev->errmsg);
- return;
- }
- do_close(dev);
- Dmsg0(29, "term_dev\n");
- if (dev->dev_name) {
- free_memory(dev->dev_name);
- dev->dev_name = NULL;
- }
- if (dev->errmsg) {
- free_pool_memory(dev->errmsg);
- dev->errmsg = NULL;
- }
- pthread_mutex_destroy(&dev->mutex);
- pthread_cond_destroy(&dev->wait);
- pthread_cond_destroy(&dev->wait_next_vol);
- if (dev->state & ST_MALLOC) {
- free_pool_memory((POOLMEM *)dev);
- }
+ /* ******FIXME******* put these on config variables */
+ jcr->min_wait = 60 * 60;
+ jcr->max_wait = 24 * 60 * 60;
+ jcr->max_num_wait = 9; /* 5 waits =~ 1 day, then 1 day at a time */
+ jcr->wait_sec = jcr->min_wait;
+ jcr->rem_wait_sec = jcr->wait_sec;
+ jcr->num_wait = 0;
}
+
/*
- * We attach a jcr to the device so that when
- * the Volume is full during writing, a
- * JobMedia record will be created for this
- * Job.
+ * The dev timers are used for waiting on a particular device
+ *
+ * Returns: true if time doubled
+ * false if max time expired
*/
-void attach_jcr_to_device(DEVICE *dev, JCR *jcr)
+bool double_dev_wait_time(DEVICE *dev)
{
- jcr->prev_dev = (JCR *)NULL;
- jcr->next_dev = dev->attached_jcrs;
- if (dev->attached_jcrs) {
- dev->attached_jcrs->prev_dev = jcr;
+ dev->wait_sec *= 2; /* double wait time */
+ if (dev->wait_sec > dev->max_wait) { /* but not longer than maxtime */
+ dev->wait_sec = dev->max_wait;
+ }
+ dev->num_wait++;
+ dev->rem_wait_sec = dev->wait_sec;
+ if (dev->num_wait >= dev->max_num_wait) {
+ return false;
}
- dev->attached_jcrs = jcr;
- Dmsg1(100, "Attached Job %s\n", jcr->Job);
+ return true;
}
-void detach_jcr_from_device(DEVICE *dev, JCR *jcr)
+
+void set_os_device_parameters(DCR *dcr)
{
- if (!jcr->prev_dev) {
- dev->attached_jcrs = jcr->next_dev;
+ DEVICE *dev = dcr->dev;
+
+#if defined(HAVE_LINUX_OS) || defined(HAVE_WIN32)
+ struct mtop mt_com;
+
+ Dmsg0(050, "In set_os_device_parameters\n");
+#if defined(MTSETBLK)
+ if (dev->min_block_size == dev->max_block_size &&
+ dev->min_block_size == 0) { /* variable block mode */
+ mt_com.mt_op = MTSETBLK;
+ mt_com.mt_count = 0;
+ Dmsg0(050, "Set block size to zero\n");
+ if (tape_ioctl(dev->fd, MTIOCTOP, (char *)&mt_com) < 0) {
+ dev->clrerror(MTSETBLK);
+ }
+ }
+#endif
+#if defined(MTSETDRVBUFFER)
+ if (getpid() == 0) { /* Only root can do this */
+ mt_com.mt_op = MTSETDRVBUFFER;
+ mt_com.mt_count = MT_ST_CLEARBOOLEANS;
+ if (!dev->has_cap(CAP_TWOEOF)) {
+ mt_com.mt_count |= MT_ST_TWO_FM;
+ }
+ if (dev->has_cap(CAP_EOM)) {
+ mt_com.mt_count |= MT_ST_FAST_MTEOM;
+ }
+ Dmsg0(050, "MTSETDRVBUFFER\n");
+ if (tape_ioctl(dev->fd, MTIOCTOP, (char *)&mt_com) < 0) {
+ dev->clrerror(MTSETDRVBUFFER);
+ }
+ }
+#endif
+ return;
+#endif
+
+#ifdef HAVE_NETBSD_OS
+ struct mtop mt_com;
+ if (dev->min_block_size == dev->max_block_size &&
+ dev->min_block_size == 0) { /* variable block mode */
+ mt_com.mt_op = MTSETBSIZ;
+ mt_com.mt_count = 0;
+ if (tape_ioctl(dev->fd, MTIOCTOP, (char *)&mt_com) < 0) {
+ dev->clrerror(MTSETBSIZ);
+ }
+ /* Get notified at logical end of tape */
+ mt_com.mt_op = MTEWARN;
+ mt_com.mt_count = 1;
+ if (tape_ioctl(dev->fd, MTIOCTOP, (char *)&mt_com) < 0) {
+ dev->clrerror(MTEWARN);
+ }
+ }
+ return;
+#endif
+
+#if HAVE_FREEBSD_OS || HAVE_OPENBSD_OS
+ struct mtop mt_com;
+ if (dev->min_block_size == dev->max_block_size &&
+ dev->min_block_size == 0) { /* variable block mode */
+ mt_com.mt_op = MTSETBSIZ;
+ mt_com.mt_count = 0;
+ if (tape_ioctl(dev->fd, MTIOCTOP, (char *)&mt_com) < 0) {
+ dev->clrerror(MTSETBSIZ);
+ }
+ }
+/* Turn this on later when fully tested */
+#if defined(xxxMTIOCSETEOTMODEL)
+ uint32_t neof;
+ if (dev->has_cap(CAP_TWOEOF)) {
+ neof = 2;
} else {
- jcr->prev_dev->next_dev = jcr->next_dev;
+ neof = 1;
}
- if (jcr->next_dev) {
- jcr->next_dev->prev_dev = jcr->prev_dev;
+ if (ioctl(dev->fd, MTIOCSETEOTMODEL, (caddr_t)&neof) < 0) {
+ berrno be;
+ dev->dev_errno = errno; /* save errno */
+ Mmsg2(dev->errmsg, _("Unable to set eotmodel on device %s: ERR=%s\n"),
+ dev->print_name(), be.strerror(dev->dev_errno));
+ Jmsg(dcr->jcr, M_FATAL, 0, dev->errmsg);
+ }
+#endif
+ return;
+#endif
+
+#ifdef HAVE_SUN_OS
+ struct mtop mt_com;
+ if (dev->min_block_size == dev->max_block_size &&
+ dev->min_block_size == 0) { /* variable block mode */
+ mt_com.mt_op = MTSRSZ;
+ mt_com.mt_count = 0;
+ if (tape_ioctl(dev->fd, MTIOCTOP, (char *)&mt_com) < 0) {
+ dev->clrerror(MTSRSZ);
+ }
}
- jcr->next_dev = jcr->prev_dev = NULL;
- Dmsg1(100, "Detached Job %s\n", jcr->Job);
+ return;
+#endif
}
-JCR *next_attached_jcr(DEVICE *dev, JCR *jcr)
+static bool dev_get_os_pos(DEVICE *dev, struct mtget *mt_stat)
{
- if (jcr == (JCR *)NULL) {
- return dev->attached_jcrs;
- }
- return jcr->next_dev;
+ Dmsg0(050, "dev_get_os_pos\n");
+ return dev->has_cap(CAP_MTIOCGET) &&
+ tape_ioctl(dev->fd, MTIOCGET, (char *)mt_stat) == 0 &&
+ mt_stat->mt_fileno >= 0;
+}
+
+static char *modes[] = {
+ "CREATE_READ_WRITE",
+ "OPEN_READ_WRITE",
+ "OPEN_READ_ONLY",
+ "OPEN_WRITE_ONLY"
+};
+
+
+static char *mode_to_str(int mode)
+{
+ static char buf[100];
+ if (mode < 1 || mode > 4) {
+ bsnprintf(buf, sizeof(buf), "BAD mode=%d", mode);
+ return buf;
+ }
+ return modes[mode-1];
}
projects / bacula / bacula / blobdiff